A monument to the one-armed geologist who led the first documented expeditions through the Grand Canyon.

Dozens of large-scale, creative, evocative curios from prominent artists dot the calm outdoor space around this major museum.

This abandoned, windowless concrete block is one of the strangest buildings in Tulsa.

This tomb was fashioned with a sliding window for a grieving mother who struggled with her daughter's death.

Although it has never been a secret ninja base, this shrine still has plenty of tricks up its sleeve.

The oldest dim sum restaurant in the United States is a nostalgic jewel.

This unassuming home was once “grand central station” for the Underground Railroad.

The smallest country in the world.

A floating cat sanctuary on an Amsterdam canal.

Long-forgotten artifacts give incredible insight into New York's most glamorous hotel.

Gold Rush-era tombstones line the park's paths.