Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

The one-stop shop for all of your superhero (or evil arch-nemesis) needs.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

Fossils, railroads, and waterfalls!

A stunning silver lining to global warming's gloomy cloud.

Longest road tunnel in the world features an air treatment plant and the illusion of daylight.

The rocks in this arid basin leave trails of movement behind them.

This red lake 4,000 meters above sea level is home to rare flamingos.

A seemingly endless landscape of pure salt stretches far across Bolivia.

The Twisted Trees of Alticane are an unnerving grove of Quaking Aspen, apparently mutated from a single source, giving them a twisted and unnatural appearance.

A spectacular cave and a beguiling lake.

The world's highest and most dangerous infinity pool lies at the precipice of Victoria Falls.

A gallery of underwater art that can be visited by man and fish alike.

The hidden "ballroom" under a mansion lake was built by a criminal who ate a cyanide pill during his trial.

Stay in a room with a view... of the bottom of the ocean.

A replica that won't float away.

The remains of diamond fever taken over by the desert.

Odd outsider art installations surround a Gold Rush-era ghost town.

Mind-blowing carvings and fantasy ice scenes grace the largest year-round ice environment in the world.

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.

Hotel designed by indie graphics artists.

Vortex-shaped aquarium hosts Europe's largest school of piranhas and other ocean creatures.