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- U.S. Infantry Association--Buildings--Washington (D.C.)--1920-1930.
- U.S. Infantry Association--Buildings--Washington (D.C.)--1940-1950.
- Umbrellas--1960-1970.
- Unbuilt projects--United States--1880.
- Underwood, Bertha Woodward--Homes & haunts--Virginia--Mount Vernon.
- Union League Club (New York, N.Y.)
- Union Station (Washington, D.C.)--1920-1930.
- Union Station (Washington, D.C.)--1930-1940.
- Union Station (Washington, D.C.)--Buildings--1900-1910. (2)
- Union Station (Washington, D.C.)--Buildings--1940-1950.
- Unitarian Universalist churches--1960-1970. (3)
- Unitarian Universalist churches--Washington (D.C.)--1820-1830.
- United Airlines--Buildings--Virginia--McLean--1960-1970. (2)
- United States Botanic Garden--1860-1870.
- United States Capitol (Washington, D.C.)--1790-1800. (10)
- United States Capitol (Washington, D.C.)--1800-1820.
- United States Capitol (Washington, D.C.)--1810-1820. (2)
- United States Capitol (Washington, D.C.)--1810-1830. (2)
- United States Capitol (Washington, D.C.)--1820-1830.
- United States Capitol (Washington, D.C.)--1830-1840. (2)
- United States Capitol (Washington, D.C.)--1850-1860. (7)
- United States Capitol (Washington, D.C.)--1870-1880.
- United States Capitol (Washington, D.C.)--1880-1890.
- United States Capitol (Washington, D.C.)--1900-1901.
- United States Capitol (Washington, D.C.)--1910-1920. (3)
- United States Capitol (Washington, D.C.)--1950-1960.
- United States Capitol (Washington, D.C.)--1960-1970. (4)
- United States Capitol (Washington, D.C.)--1960-1980.
- United States Capitol (Washington, D.C.)--1970-1980. (5)
- United States Capitol (Washington, D.C.)--Buildings--1850-1860.
- United States Capitol (Washington, D.C.)--Facilities--1790-1800.
- United States Capitol (Washington, D.C.)--Facilities--1820-1830.
- United States Capitol (Washington, D.C.)--Facilities--1930-1940.
- United States Express Company--Buildings--Washington (D.C.)--1900-1910. (3)
- United States Express Company--Buildings--Washington (D.C.)--1910.
- United States Housing Corporation--Buildings--Washington (D.C.)--1910-1920. (4)
- United States Military Academy--Buildings--1800.
- United States Military Academy--Buildings--New York (State)--West Point--1840-1850.
- United States Military Academy--Sports--Washington (D.C.)--1910-1920.
- United States National Museum--Buildings--Washington (D.C.)--1870-1880.
- United States Naval Academy--Sports--Washington (D.C.)--1910-1920.
- United States Postal Service--Buildings--Maryland--Langley Park--1950-1960.
- United States Postal Service--Buildings--Washington(D.C.)--1920-1930.
- United States--Alabama--Auburn.
- United States--Alabama--Tuscaloosa.
- United States--Alabama--Tuscumbia.
- United States--Alabama--Tuskegee.
- United States--Alaska--Sitka.
- United States--Arizona--Tombstone.
- United States--Arkansas--Little Rock. (2)
- United States--California--Los Angeles.
- United States--California--Montecito. (6)
- United States--California--Ojai.
- United States--California--San Francisco.
- United States--California--Santa Barbara. (9)
- United States--California--Solvang.
- United States--California. (7)
- United States--Colorado--Aspen.
- United States--Colorado--Georgetown.
- United States--Connecticut--Danbury.
- United States--Connecticut--Farmington.
- United States--Connecticut--Greenwich.
- United States--Connecticut--Litchfield.
- United States--Connecticut--New Canaan. (2)
- United States--Connecticut--New Haven.
- United States--Connecticut--New London.
- United States--Connecticut--Ridgefield. (11)
- United States--Connecticut--Waterbury. (3)
- United States--Delaware--Middletown.
- United States--Delaware--New Castle.
- United States--Delaware--Rehoboth Beach
- United States--Delaware--Rehoboth Beach. (2)
- United States--Delaware--Wilmington. (7)
- United States--District of Columbia--Washington (D.C.) (41)
- United States--District of Columbia--Washington (D.C.)--Georgetown.
- United States--District of Columbia--Washington (D.C.). (3)
- United States--District of Columbia--Washington, D.C. (4)
- United States--Florida--Broward County. (2)
- United States--Florida--Jacksonville.
- United States--Georgia--Athens.
- United States--Georgia--Augusta. (2)
- United States--History--Civil War, 1861-1865.
- United States--History--War of 1812.
- United States--Illinois--Chicago. (2)
- United States--Illinois--Galena. (2)
- United States--Illinois--Lake Forest.
- United States--Illinois--Mount Vernon.
- United States--Illinois--Shawneetown.
- United States--Indiana--Indianapolis. (2)
- United States--Indiana--Lafayette. (4)
- United States--Indiana--West Lafayette. (2)
- United States--Iowa--Burlington.
- United States--Kansas--Kansas City.
- United States--Louisiana--New Orleans. (5)
- United States--Maine.
- United States--Maryland--Accokeek.
- United States--Maryland--Baltimore County. (3)
- United States--Maryland--Baltimore. (2)
- United States--Maryland--Bethesda. (3)
- United States--Maryland--Bladensburg.
- United States--Maryland--Catoctin Acres.
- United States--Maryland--Frederick. (2)
- United States--Maryland--Gaithersburg. (2)
- United States--Maryland--Langley Park.
- United States--Maryland--Montgomery County--Bethesda.
- United States--Maryland--Montgomery County--Germantown. (2)
- United States--Maryland--Montgomery County--Kensington. (2)
- United States--Maryland--Montgomery County--Wheaton. (3)
- United States--Maryland--Montgomery County. (10)
- United States--Maryland--Potomac. (2)
- United States--Maryland--Prince George's County. (2)
- United States--Maryland--Prince Georges County.
- United States--Maryland--Rockville.
- United States--Massachusetts--Beverly.
- United States--Massachusetts--Boston. (3)
- United States--Massachusetts--Cape Cod.
- United States--Massachusetts--Glendale. (2)
- United States--Massachusetts--Osterville.
- United States--Massachusetts--Rockport.
- United States--Massachusetts--Stockbridge. (2)
- United States--Massachusetts--Wenham.
- United States--Massachusetts--Worcester.
- United States--Michigan--Detroit. (3)
- United States--Michigan--Saint Joseph. (12)
- United States--Minnesota--Saint Paul. (6)
- United States--Missouri--Kansas City. (2)
- United States--Missouri--Saint Louis. (4)
- United States--Montana--Helena.
- United States--New Hampshire--Westmoreland.
- United States--New Jersey--Atlantic City.
- United States--New Jersey--Englewood. (3)
- United States--New Jersey--Moorestown. (5)
- United States--New Jersey--Newark. (3)
- United States--New Jersey--Princeton. (5)
- United States--New Jersey--Secaucus.
- United States--New Jersey--Westfield.
- United States--New Jersey.
- United States--New York (State)
- United States--New York (State)--Buffalo. (2)
- United States--New York (State)--Garrison. (2)
- United States--New York (State)--Henrietta. (6)
- United States--New York (State)--Lloyd Neck.
- United States--New York (State)--Locust Valley. (2)
- United States--New York (State)--New York. (34)
- United States--New York (State)--Pelham Manor.
- United States--New York (State)--Plattsburgh.
- United States--New York (State)--Schenectady.
- United States--New York (State)--Watertown.
- United States--North Carolina--Barium Springs.
- United States--North Carolina--Charlotte.
- United States--North Carolina--Kinston. (2)
- United States--North Carolina.
- United States--Ohio--Cincinnati.
- United States--Ohio--Oberlin. (10)
- United States--Ohio--Zanesville.
- United States--Pennsylvania--Ambler.
- United States--Pennsylvania--Bethlehem.
- United States--Pennsylvania--Bryn Athyn. (4)
- United States--Pennsylvania--Bryn Mawr. (3)
- United States--Pennsylvania--Buck Hill Falls.
- United States--Pennsylvania--Centre County--State College. (2)
- United States--Pennsylvania--Devon.
- United States--Pennsylvania--Haverford. (4)
- United States--Pennsylvania--Ingomar.
- United States--Pennsylvania--Merwood.
- United States--Pennsylvania--Milford. (2)
- United States--Pennsylvania--Newton. (2)
- United States--Pennsylvania--Oxford.
- United States--Pennsylvania--Philadelphia. (21)
- United States--Pennsylvania--Pittsburgh. (4)
- United States--Pennsylvania--Rosemont. (2)
- United States--Pennsylvania--Tredyffrin (Township).
- United States--Pennsylvania--Valley Forge. (2)
- United States--Pennsylvania.
- United States--South Carolina--Charleston. (3)
- United States--South Carolina--Greenwood.
- United States--South Carolina--Myrtle Beach. (2)
- United States--South Carolina.
- United States--Tennessee--Knoxville. (4)
- United States--Texas--Austin. (10)
- United States--Texas--Houston. (6)
- United States--Texas--Memphis.
- United States--Texas--San Antonio.
- United States--Vermont--Bennington.
- United States--Virginia--Alexandria. (19)
- United States--Virginia--Arlington County. (5)
- United States--Virginia--Arlington. (5)
- United States--Virginia--Charlottesville. (3)
- United States--Virginia--Essex County--Supply.
- United States--Virginia--Fairfax County--Falls Church.
- United States--Virginia--Fairfax County--Herndon.
- United States--Virginia--Fairfax County--McLean. (14)
- United States--Virginia--Fairfax County--Reston. (12)
- United States--Virginia--Fairfax County. (44)
- United States--Virginia--Fairfax. (3)
- United States--Virginia--Gloucester County.
- United States--Virginia--Hampton.
- United States--Virginia--McLean. (21)
- United States--Virginia--Montgomery County--McLean.
- United States--Virginia--Monticello.
- United States--Virginia--Natural Bridge.
- United States--Virginia--Norfolk. (2)
- United States--Virginia--Orange.
- United States--Virginia--Paris.
- United States--Virginia--Prince William County--Woodbridge. (4)
- United States--Virginia--Reston. (7)
- United States--Virginia--Richmond.
- United States--Virginia--Williamsburg.
- United States--Virginia. (2)
- United States--Virginia.--Alexandria.
- United States--West Virginia--Charleston. (6)
- United States--West Virginia--Clarksburg.
- United States--Wisconsin--Madison. (3)
- United States. (14)
- United States.--Army.--Air Corps--Facilities--Texas--Schertz--1920-1930.
- United States.--Army.--Air Corps. (7)
- United States.--Army.--Ordnance Dept.--Buildings--Washington (D.C.)--1910-1920.
- United States.--Army.--Quartermaster Corps--Buildings--1940-1950.
- United States.--Assay Office (Boise, Idaho)--Buildings--1870-1880.
- United States.--Bureau of Engraving and Printing--Buildings--Washington (D.C.)--1880.
- United States.--Bureau of Industrial Housing and Transportation--Buildings--Washington (D.C.)--1910-1920.
- United States.--Bureau of the Mint--Buildings--California--San Francisco--1860-1880.
- United States.--Bureau of the Mint--Buildings--Nevada--Carson City--1860-1880.
- United States.--Congress.--House--Buildings--Washington (D.C.)--1790-1800.
- United States.--Congress.--House--Buildings--Washington (D.C.)--1800-1820.
- United States.--Congress.--House--Buildings--Washington (D.C.)--1810-1820.
- United States.--Congress.--House--Buildings--Washington (D.C.)--1810-1830.
- United States.--Congress.--House--Buildings--Washington (D.C.)--1830-1840. (2)
- United States.--Congress.--House--Facilities--1960-1970.
- United States.--Congress.--House--Facilities--Washington (D.C.)--1850-1860.
- United States.--Congress.--Senate--Buildings--Washington (D.C.)--1790-1800.
- United States.--Congress.--Senate--Buildings--Washington (D.C.)--1810-1820.
- United States.--Congress.--Senate--Buildings--Washington (D.C.)--1830-1840.
- United States.--Congress.--Senate--Buildings--Washington (D.C.--1800-1820.
- United States.--Congress.--Senate--Facilities--1960-1970.
- United States.--Congress.--Senate--Facilities--Washington (D.C.)--1970-1980.
- United States.--Constitution--1920-1930.
- United States.--Constitution.
- United States.--Customs Court--Buildings--New York (State)--New York--1960-1970.
- United States.--Declaration of Independence--Exhibitions & displays--Washington (D.C.)--1920-1930.
- United States.--Declaration of Independence.
- United States.--Dept. of State--Buildings--Washington (D.C.)--1980-1990. (3)
- United States.--Dept. of State--Exhibitions & displays--Washington--Seattle--1960-1970.
- United States.--Dept. of the Interior--Facilities--Washington (D.C.)--1960-1970.
- United States.--Dept. of the Navy--Buildings--South Carolina--Beaufort--1940-1950.
- United States.--Dept. of the Treasury--Buildings--Massachusetts--Boston--1860-1880.
- United States.--Dept. of the Treasury--Buildings--Washington (D.C.)--1800-1810.
- United States.--Dept. of the Treasury--Buildings--Washington (D.C.)--1810-1820.
- United States.--Dept. of the Treasury--Buildings--Washington (D.C.)--1840-1850.
- United States.--Dept. of the Treasury.--Buildings--Washington (D.C.)--1910-1940.
- United States.--Division of Customs--Buildings--Connecticut--New Haven--1850-1860.
- United States.--Division of Customs--Buildings--Delaware--Wilmington--1850-1860.
- United States.--Division of Customs--Buildings--Florida--Pensacola--1850-1860.
- United States.--Division of Customs--Buildings--Illinois--Cairo--1860-1880.
- United States.--Division of Customs--Buildings--Illinois--Chicago--1850-1860.
- United States.--Division of Customs--Buildings--Illinois--Chicago--1860-1880.
- United States.--Division of Customs--Buildings--Illinois--Galena--1850-1860.
- United States.--Division of Customs--Buildings--Illinois--Springfield--1850-1860.
- United States.--Division of Customs--Buildings--Indiana--Indianapolis--1850-1860.
- United States.--Division of Customs--Buildings--Iowa--Des Moines--1860-1870.
- United States.--Division of Customs--Buildings--Iowa--Dubuque--1850-1860.
- United States.--Division of Customs--Buildings--Maine--Bangor--1860-1880.
- United States.--Division of Customs--Buildings--Maine--Bath--1850-1860.
- United States.--Division of Customs--Buildings--Maine--Belfast--1850-1860.
- United States.--Division of Customs--Buildings--Maine--Ellsworth--1850-1860.
- United States.--Division of Customs--Buildings--Maine--Portland--1850-1860.
- United States.--Division of Customs--Buildings--Maine--Portland--1850-1870.
- United States.--Division of Customs--Buildings--Maine--Portland--1860-1880.
- United States.--Division of Customs--Buildings--Maine--Waldoboro--1850-1860.
- United States.--Division of Customs--Buildings--Massachusetts--Barnstable--1850-1860.
- United States.--Division of Customs--Buildings--Massachusetts--Boston--1840.
- United States.--Division of Customs--Buildings--Massachusetts--Gloucester--1850-1860.
- United States.--Division of Customs--Buildings--Michigan--Detroit--1850-1860.
- United States.--Division of Customs--Buildings--Minnesota--Saint Paul--1860-1880.
- United States.--Division of Customs--Buildings--Missouri--Saint Louis--1860-1880.
- United States.--Division of Customs--Buildings--New Hampshire--Portsmouth--1850-1860.
- United States.--Division of Customs--Buildings--New Jersey--Newark--1850-1860.
- United States.--Division of Customs--Buildings--New Jersey--Trenton--1860-1880.
- United States.--Division of Customs--Buildings--New York (State)--Buffalo--1850-1860.
- United States.--Division of Customs--Buildings--New York (State)--Ogdensburg--1860-1880.
- United States.--Division of Customs--Buildings--New York (State)--Oswego--1850-1860.
- United States.--Division of Customs--Buildings--Ohio--Cincinnati--1850-1860.
- United States.--Division of Customs--Buildings--Ohio--Cleveland--1850-1860.
- United States.--Division of Customs--Buildings--Ohio--Sandusky--1850-1860.
- United States.--Division of Customs--Buildings--Oregon--Portland--1860-1880.
- United States.--Division of Customs--Buildings--Pennsylvania--Philadelphia--1860-1880. (2)
- United States.--Division of Customs--Buildings--Rhode Island--Bristol (Town)--1850-1860.
- United States.--Division of Customs--Buildings--Rhode Island--Providence--1850-1860.
- United States.--Division of Customs--Buildings--South Carolina--Charleston--1800-1880.
- United States.--Division of Customs--Buildings--South Carolina--Charleston--1860-1880.
- United States.--Division of Customs--Buildings--Tennessee--Memphis--1860-1880.
- United States.--Division of Customs--Buildings--Texas--Galveston--1850-1860.
- United States.--Division of Customs--Buildings--Vermont--Burlington--1850-1860.
- United States.--Division of Customs--Buildings--Vermont--Rutland--1850-1860.
- United States.--Division of Customs--Buildings--Vermont--Windsor--1850-1860.
- United States.--Division of Customs--Buildings--Virginia--Alexandria--1850-1860.
- United States.--Division of Customs--Buildings--Virginia--Petersburg--1850-1860.
- United States.--Division of Customs--Buildings--Virginia--Richmond--1850-1860.
- United States.--Division of Customs--Buildings--Washington (D.C.)--1850-1860.
- United States.--Division of Customs--Buildings--West Virginia--Wheeling--1850-1860.
- United States.--Division of Customs--Buildings--Wisconsin--Milwaukee--1850-1860.
- United States.--Embassy (Japan)--Buildings--1910-1920.
- United States.--Federal Housing Administration--Buildings--Washington (D.C.)--1960-1970.
- United States.--Federal Housing Administration.--Buildings--Washington (D.C.)--1950-1960.
- United States.--General Accounting Office--Buildings--Washington (D.C.)--1930-1940.
- United States.--Housing and Home Finance Agency--Buildings--Virginia--Arlington--1940-1950.
- United States.--Marine Corps--Buildings--Florida--Saint Marks--1850-1860.
- United States.--Marine Corps--Buildings--Washington (D.C.)--1810-1820.
- United States.--National Guard Bureau--Facilities--Maryland--Montgomery County--1950-1960.
- United States.--National Guard Bureau--Facilities--Maryland--Prince George's County--1950-1960.
- United States.--Navy Dept.--Buildings--1940-1950.
- United States.--Navy Dept.--Buildings--New York--Scotia--1940-1950.
- United States.--Navy Dept.--Buildings--North Carolina--Jacksonville--1940-1950. (2)
- United States.--Navy Dept.--Buildings--Pennsylvania--Philadelphia--1930-1940.
- United States.--Navy Dept.--Buildings--South Carolina--Parris Island--1940-1950.
- United States.--Navy Dept.--Buildings--Washington--Spokane--1940-1950.
- United States.--Patent Office--1900-1930.
- United States.--Patent Office--Buildings--Washington (D.C.)--1830-1840.
- United States.--Patent Office--Buildings--Washington (D.C.)--1840-1850.
- United States.--Post Offce Dept.--Buildings--New Jersey--Trenton--1860-1880.
- United States.--Post Office Dept.--Buildings--1930-1980.
- United States.--Post Office Dept.--Buildings--1940-1950.
- United States.--Post Office Dept.--Buildings--Connecticut--Hartford--1860-1880.
- United States.--Post Office Dept.--Buildings--Connecticut--New Haven--1850-1860.
- United States.--Post Office Dept.--Buildings--Delaware--Wilmington--1850-1860.
- United States.--Post Office Dept.--Buildings--Florida--Pensacola--1850-1860.
- United States.--Post Office Dept.--Buildings--Illinois--Cairo--1860-1880.
- United States.--Post Office Dept.--Buildings--Illinois--Chicago--1850-1860.
- United States.--Post Office Dept.--Buildings--Illinois--Chicago--1860-1880.
- United States.--Post Office Dept.--Buildings--Illinois--Galena--1850-1860.
- United States.--Post Office Dept.--Buildings--Illinois--Springfield--1850-1860.
- United States.--Post Office Dept.--Buildings--Illinois--Springfield--1860-1880.
- United States.--Post Office Dept.--Buildings--Indiana--Indianapolis--1850-1860.
- United States.--Post Office Dept.--Buildings--Iowa--Dubuque--1850-1860.
- United States.--Post Office Dept.--Buildings--Maine--Bangor--1860-1880.
- United States.--Post Office Dept.--Buildings--Maine--Bath--1850-1860.
- United States.--Post Office Dept.--Buildings--Maine--Belfast--1850-1860.
- United States.--Post Office Dept.--Buildings--Maine--Ellsworth--1850-1860.
- United States.--Post Office Dept.--Buildings--Maine--Portland--1850-1860.
- United States.--Post Office Dept.--Buildings--Maine--Portland--1850-1870.
- United States.--Post Office Dept.--Buildings--Maine--Portland--1870-1880.
- United States.--Post Office Dept.--Buildings--Maine--Waldoboro--1850-1860.
- United States.--Post Office Dept.--Buildings--Massachusetts--Barnstable--1850-1860.
- United States.--Post Office Dept.--Buildings--Massachusetts--Boston--1860-1880.
- United States.--Post Office Dept.--Buildings--Massachusetts--Gloucester--1850-1860.
- United States.--Post Office Dept.--Buildings--Minnesota--Saint Paul--1860-1880.
- United States.--Post Office Dept.--Buildings--Missouri--Saint Louis--1860-1880.
- United States.--Post Office Dept.--Buildings--Nebraska--Omaha--1860-1880.
- United States.--Post Office Dept.--Buildings--New Hampshire--Portsmouth--1850-1860.
- United States.--Post Office Dept.--Buildings--New Jersey--Newark--1850-1860.
- United States.--Post Office Dept.--Buildings--New York (State)--Buffalo--1850-1860.
- United States.--Post Office Dept.--Buildings--New York (State)--New York--1860-1880.
- United States.--Post Office Dept.--Buildings--New York (State)--Ogdensburg--1860-1880.
- United States.--Post Office Dept.--Buildings--New York (State)--Oswego--1850-1860.
- United States.--Post Office Dept.--Buildings--Ohio--Cincinnati--1850-1860.
- United States.--Post Office Dept.--Buildings--Ohio--Sandusky--1850-1860.
- United States.--Post Office Dept.--Buildings--Oregon--Portland--1860-1880.
- United States.--Post Office Dept.--Buildings--Pennsylvania--Philadelphia--1860-1880.
- United States.--Post Office Dept.--Buildings--Rhode Island--Providence--1850-1860.
- United States.--Post Office Dept.--Buildings--South Carolina--Charleston--1800-1880.
- United States.--Post Office Dept.--Buildings--Tennessee--Knoxville--1870-1880.
- United States.--Post Office Dept.--Buildings--Tennessee--Memphis--1860-1880.
- United States.--Post Office Dept.--Buildings--Vermont--Burlington--1850-1860.
- United States.--Post Office Dept.--Buildings--Vermont--Rutland--1850-1860.
- United States.--Post Office Dept.--Buildings--Vermont--Windsor--1850-1860.
- United States.--Post Office Dept.--Buildings--Virginia--Petersburg--1850-1860.
- United States.--Post Office Dept.--Buildings--Virginia--Richmond--1850-1860.
- United States.--Post Office Dept.--Buildings--Washington (D.C.)--1840-1850.
- United States.--Post Office Dept.--Buildings--Washington (D.C.)--1850-1860.
- United States.--Post Office Dept.--Buildings--Washington (D.C.)--1860-1880.
- United States.--Post Office Dept.--Buildings--West Virginia--Wheeling--1850-1860.
- United States.--Post Office Dept.--Buildings--Wisconsin--Madison--1860-1880.
- United States.--Post Office Dept.--Buildings--Wisconsin--Milwaukee--1850-1860.
- United States.--Public Works Administration.--Buildings--Washington (D.C.)--1930-1940.
- United States.--Superintendent of State, War and Navy--Buildings--Washington (D.C.)--1870-1890.
- United States.--Supreme Court--Buildings--Washington (D.C.)--1800-1820.
- United States.--Supreme Court--Buildings--Washington (D.C.)--1830-1840.
- United States.--Supreme Court--Buildings--Washington (D.C.)--1880-1890.
- United States.--Supreme Court--Buildings--Washington (D.C.)--1920-1930.
- United States.--Supreme Court--Buildings--Washington (D.C.)--1920-1940.
- United States.--Supreme Court--Facilities--Washington (D.C.)--1970-1980.
- United States.--War Department--Buildings--Washington (D.C.)--1810-1820.
- United States.--War Dept.--Buildings--Washington (D.C.)--1930-1940. (2)
- Universities & colleges--1940-1950. (3)
- Universities & colleges--1950-1960. (2)
- Universities & colleges--1950. (2)
- Universities & colleges--England--Cambridge.
- Universities & colleges--Maryland--Chevy Chase--1940-1950.
- Universities & colleges--Maryland--Frostburg--1950-1970.
- Universities & colleges--Missouri--University City--1930-1980.
- Universities & colleges--New York (State)--New York--1920-1930.
- Universities & colleges--Tennessee--Nashville--1920-1930.
- Universities & colleges--Virginia--Williamsburg--1920-1930. (3)
- Universities & colleges--Washington (D.C.)--1870-1880.
- Universities & colleges--Washington (D.C.)--1920-1930.
- Universities & colleges--Washington (D.C.)--1940-1950. (2)
- Universities & colleges--Washington (D.C.)--1980-1990.
- Universities & colleges. (33)
- Universities and colleges--Landscape architecture.
- University of Alabama--Buildings.
- University of Georgia.
- University of Maryland, College Park--Facilities--Maryland--College Park--1920-1930.
- University of Maryland, College Park--Facilities--Maryland--College Park--1960.
- University of Pennsylvania.
- University of Texas at Austin. (5)
- Urban renewal--1950-1960.
- Urban renewal--1950-1980.
- Urban renewal--1960-1970. (3)
- Urban renewal--1960. (3)
- Urban renewal--Washington (D.C.)--1950-1960. (3)
- Urban renewal--Washington (D.C.)--1950-1970.
- Urban renewal--Washington (D.C.)--1960-1970. (7)
- Urban renewal--Washington (D.C.)--1960-1980.
- Urban renewal--Washington (D.C.)--1970-1980.
- Urban renewal--Washington (D.C.)--1970.
- Urns--1900-1940.
- Urns--Italy--Rome--1930-1940.
- Urns--Washington (D.C.)--1840-1890.
- Urns--Washington (D.C.)--1930-1940.
- Urns. (3)