A tree-like building perches on its trunk in the Steglitz neighborhood of Berlin.

The world's most delightful not-NOT-religion welcomes visitors to the town of Templin, just like its more stoic peers.

An abandoned NSA listening post on Berlin's "Devil's Mountain."

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

Experience a charming 1930's version of "infotainment."

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

Originally built as a promotional giveaway, this suburban house was designed to be an IRL version of the Simpson home.

The best Tiki bar in Las Vegas.

Vibrant street art created with mixed media.

A record-breaking pool that uses computers to turn ocean water into cleaner, private swimming water.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

Mineral springs believed to hold therapeutic properties draw in visitors from all over.

Once swallowed by flood waters, this village has emerged as an eerie shadow of its former self.

Museum housed in underground tunnels that date back to Buenos Aires's earliest settlements.

A tower devoted to — and modeled after — the Divine Comedy.

This giant power line tower is a robot that can express its moods in neon.