Reaching for the Out of Reach
Joshua Heineman

Animated .gifs made from NYPL's collection of stereographs.

World Air Traffic Over 24 Hours

The deepest pool in the world, known as Nemo 33, "is filled with 2,500,000 liters of non-chlorinated, highly filtered spring water maintained at 30 C (86 F) and contains several simulated underwater caves at the 10 m depth level and a large circular pit descending to a depth of 33 m (108 ft)."