Solitary monument dedicated to the beauty of nature.

These termites have an large and deadly abode—impressive by day, dazzling by night.

You feel like you're in a forest, but you're actually walking amidst the branches and trunks of a single giant tree.

This stunning, out-of-the-way Croatian monument commemorates a community's uprising against occupying fascist forces.

The observation point offers spectacular views of the ruins of an ancient Armenian capital.

A geological oddity topped with a 2,000-year-old pagan temple.

These warring psychedelic crags commemorate an unsuccessful military operation.

Villas that once served as playgrounds for the rich now fall away in decay.

Fortified homes of highland warriors that are still in use today.

Space-age monument to an early 20th-century uprising.

This cheeky restaurant has a serious devotion to lard sculptures.

It's the only museum of its kind in Ukraine.

A quirky collection flush with information on commode culture from ancient times to modern day.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

The largest catacomb system in the world.

This beautiful natural train tunnel is said to grant the wishes of visiting lovebirds.

This unique museum cafeteria showcases the history and regional diversity of African American cuisine.

An 18-mile-long tunnel for sewage waste will soon wind within the bowels of Washington, D.C.

Daily lunch spot for many of Washington, D.C.'s cab drivers.

Senators used to relax in the nearly forgotten marble tubs now hidden in the U.S. Capitol Building's basement.

An easily overlooked memorial to a Ukrainian famine-genocide that killed over 4 million people.

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

This print shop boasts one of the largest pinball arcades in San Francisco.

The only theatre in the world constructed specifically for sound movement.