Mystery Stereographs
Please Help Us Solve a Mystery! Some stereographs have either no associated caption information or very little information. Please help us identify the images displayed below. These selections will change every few months.
Viewing Stereographs in 3D
The start of the American Civil War in 1861 coincided with a surge in stereo photography--a technique that renders photos in three-dimensional depth. A pair of similar images combines into a single 3-D scene using a special viewer. (Or, you can "freeview" by crossing your eyes!)