A mechanized clock where a man fights off a dragon, crab, and rooster.

This tiny patch of arid sand sits in one of the greenest states in the United States.

The second-longest continuous wall on the planet protects a hidden secret in the deserts of India.

One man's ambition created this psychedelic log home.

A dangling church built over a Colombian gorge.

An Ethiopian "Jerusalem" featuring a church hewn out of a single rock.

Houses are tucked between, on, and underneath giant boulders.

9,000 years of carnal history is on display at China's original Museum of Sex.

Stunning Roman aqueduct used for 1900 years and still standing.

An island in the middle of a lake, in the middle of a volcano, in the middle of a bigger lake, in the middle of a bigger island, in an archipelago, in the Pacific Ocean.

An Australian lake whose pink hue defies scientific explanation.

The Yonaguni Monument, a natural formation or the Japanese Atlantis?

This deceptively salty lake looks like blushing pink lemonade.

The largest pool at its elevation sits on top of one of the most expensive resorts in the world.

Mother Nature outdoes herself with this stunningly beautiful set of caves carved into marble.

A trash dump made beautiful by nature's power.

An unexpected desert oasis in South America.

Geothermal waterfalls in Tuscany.

Some of the clearest water anywhere in the world.

Sleepy fishing port not included on many maps.

Considered the birthplace of the Copper Age and Bronze Age, the river is tinted red from 5,000 years of mining.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

Massive fortress bastions in the desert of Cholistan.

An underwater restaurant, surrounded by a coral reef.