Countless grotesque faces stare out from this eerie Prague art wall.

Traditional 15th century Chinese garden in the middle of Vancouver.

Dim sum, served in a grand old theater.

Handmade treasures from around the world.

A fairy tale castle in modern Rome.

Part bookstore, part café, and part forest.

Reportedly 1,400 years old, this may be the first of the Fiji Mermaids.

A sculpture for the sun and stars, created by Nancy Holt.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

An underwater restaurant, surrounded by a coral reef.

This former Masonic hall has been turned into an art project that uses even more metaphysical iconography.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

Inspired by "The Starry Night" this Dutch bike path turns into a glowing work of art each night.

Where manatees are the snowbird vacationers in these balmy Florida springs.

Reclaimed by nature, the ruins of Doodletown, New York are remnants of a town consumed by a state park.

Inside an old airplane hangar, friends and strangers alike play on a massive trampoline.

A subterranean playground in an abandoned slate mine.

A 20-meter (65-foot) robot towers over Tokyo Bay.

Robots, lasers, and whoopee cushions, oh my!

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

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

The prototype for all Nazi concentration camps.

A living archive of urban activism and space reclaimed.

A remote candy-striped mountain in the Peruvian Andes straight out of the pages of Dr. Seuss.