Some 2,000 carvings show this rare desert spring has been an oasis for travelers for over a thousand years.

A sculpture of a flying hawk made from colorful car doors.

On the side of a remote mountain, a stone face bearing an inscription of mysterious origin.

Life-sized sculpture of a blue whale made of hand-recycled plastic trash.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

This innocuous New Mexico storefront was once the secret jump-off spot for Manhattan Project scientists.

The curious underground history of keeping Paris clean.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Famed for its pie, this eatery has a hidden tunnel that allowed Catholics to secretly walk to church during the Reformation.

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

Haunted house kitsch meets Japanese folklore at this theme bar where patrons can “die” and have their own mock funeral.

A Japanese corporation has turned this small island town into living modern art gallery.

Peace Park and the Atomic Bomb Dome.

Devoted Buddhists can earn enlightenment in the next life by crawling through this symbolic nostril.

This massive wooden building contains a giant Buddha, healing pillars, and tame deer wandering the grounds.

This neighborhood thoroughfare is haunted by dozens of homemade monsters.

The 10,000 Torii shrine.

After being lost for decades, this striking mural depicting the atomic bomb covers the wall of a busy Tokyo metro station.

The original "capsule building" is a masterpiece of Metabolist architecture.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

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

San Francisco's newly reopened hands-on science museum.

The rusting remains of the largest assembled WWII fleet on the West Coast.