Rippling sand dunes frozen in the Arizona rock.

Golden and naked, the figure that was once the highest point in New York is all that remains of the second Madison Square Garden.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

When this massive wooden temple ran out of rope, they made one out of devotees' hair.

The 10,000 Torii shrine.

The name of this ancient Indonesian temple translates as "Elephant Cave" but it could be more accurately called "The Hellmouth."

Hindu temple of the dead home to hundreds of long-tailed macaques.

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

Singapore's landscaping project is home to 18 incredible Supertrees.

This $62 million dollar temple was erected to house one little dental fragment of religious history.

A shop full of natural curiosities, carnivorous plants, and costumed taxidermied mice.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

A tribute to Ponce de Leon's supposed quest for eternal youth.

Intertwined, interspecies trees which locals believe can grant boons to lovers.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.

A Circus legend leaves an unexpected endowment.

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

The celebrated eyesore created by starry-eyed sweethearts.

A former ironworks that was the first UNESCO industrial site.

An industrial relic is now one of Europe's most staggering art spaces.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

Just a few miles from downtown Atlanta is a trail covered in a crazy collection of outsider art.