This Japanese-inspired labyrinth of hot springs is hidden in a Chilean forest.

The 10,000 Torii shrine.

Quite simply the largest tree in the world (by volume).

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

A Texas-sized particle collider that was abandoned due to its Texas-sized budget.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

One part antique store, one part curiosities hodge-podge.

Remember that scene in the Matrix, when Neo is in the big white room with all the weapons flying by? Well, this is what it would look like if he had wanted trees instead of guns.

This odd Chilean waterfall-cano hotel must be entered via a rope bridge.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

Eons ago, a rushing lava river formed this pristine passage through solid rock.

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

Extraordinary sculpture garden created by an eccentric English poet.

A small flooded ghost town with a few scattered structures remaining.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

This unique structure in suburban Austin is made up entirely of other people's castaways, and constantly changing.

Stalactites and stalagmites in a beautifully lit cave.

A Hawaiian stairway to heaven—that you can't climb.

Centuries-old bridges grown from tangled roots.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

Keshwa chaca, among the last handwoven Incan bridges, crosses Apurimac Canyon in Peru.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

This lab's maddening silence is good for business but bad for sanity.