A little-visited waterfall in an otherworldly landscape.

Though it's unclear why it's there, the lifelike sculpture of the giant lizard is oddly charming.

The rustic cabin-like decor of this Arts and Crafts-style church reflects the love of nature central to its little-known theology.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

This professional clown's home is an outsider art wonderland.

The large fjord lake is thought to be the home of "Ogopogo," a giant sea serpent.

Activists are fighting to preserve these unfinished highway ramps as a tribute to the citizen revolt that halted their construction decades ago.

One North Dakota man's vast collection of rare rocks, polished orbs, and geological wonders.

An abandoned theme park with a strange and tumultuous past.

This magnificent stepwell is designed as an inverted temple and adorned with 1,500 sculptures.

A meandering boardwalk across the bogland leads to a "stairway to heaven" with sublime views.

The flower-shaped temple in Virginia aims to transcend the boundaries of the world’s religions.

Giant busts of 42 U.S. presidents are sitting in a field in Virginia.

This museum tucked below a charming cafe gives a brief snapshot of photographic history.

The remains of Crystal Palace Great Exhibition of 1851.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

One of the most photographed buildings in a city known for its Modernista architecture is an abandoned squat.

A huge musical instrument played by the ocean.

The world's most famous donkey lives in this pen.

A hidden world of exotic succulents and cacti.

An artsy hidden staircase leads to breathtaking views of San Francisco.

Since 1973, this block has been home to the most concentrated collection of murals in San Francisco.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.