Perched on a spindly rock spire in a Greek archipelago, this lighthouse would make a perfect wizard's tower.

This spiny beast guards an artist's village while vying for the title of largest lobster in the world.

The lost town of Neversink, sunk by New York City.

Mirrors and glass shards cover every inch of this arrestingly beautiful mosque.

This once luxurious Catskills resort is now a haunting ruin.

Moss and stone turn this waterfall into an otherworldly liquid veil.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

Famous for its bio-luminescent inhabitants, known as "Dismalites" .

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

The only road through the heart of Glacier National Park.

Fossils, railroads, and waterfalls!

Friction between grains of sand cause a curious "singing" sound.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

Devilish landscape, once cinema home to giant alien bugs, now derelict roadside attraction.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

Canyon walls shrouded in ferns.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

A harrowing trail up a mile-high mountain.

Half of a waterfall goes into the river while the other half seems to disappear.

The first declared National Monument in the United States.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

A 300-yard long natural tunnel runs through a ridge deep in the Appalachian Mountains.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.