A huge musical instrument played by the ocean.

The largest drain hole in the world.

A celebration of capitalism in Midtown.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

In the remote high desert of New Mexico, a strange array of poles beckon fury from above.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

The celebrated eyesore created by starry-eyed sweethearts.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

A museum dedicated to the alleged Roswell Incident.

A hidden network of subterranean passageways lies tangled beneath Indianapolis' bustling City Market.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

The largest earthwork effigy in the world.

These fantastically named natural pools look like something out of a Scottish myth.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

The magic's in the hole!

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

The atmospheric road was never meant to be so creepy.

Stroll through a wonderland of stupendous moss-covered trees.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

Ruins of a German Castle on top of a towering stone pillar.

Hollowed out cedar log tubs set in an ancient towering forest.