A collection of miscellaneous stereographs made in North Carolina from
circa 1870 to circa 1904. The policy page state that you must execute
a usage agreement with UNC. I don't know if this requirement is binding
on public domain images, so use these at your own risk.
A collection of stereo images from NASA/JPL, from the Mars rovers.
Interesting presentation where each pair is displayed as 3 images so one
can choose to view cross-eyed or parallel by looking at the left 2 or the
right 2 images. Anaglyphs are also presented.