Three bridges and one giant canyon make up this fantastic Spanish settlement.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

One person's lost luggage is another person's treasure.

A fiery crater has been burning in the Karakum Desert since 1971.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

The original "capsule building" is a masterpiece of Metabolist architecture.

Where beautiful signs live on forever.

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

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

A Jenga-style cylindrical tower of books that appears to go on forever.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

A hands-on traveling collection of the innovative devices of yesteryear.

Rising from the sea like a stone monster.

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

Tokyo’s only Vaudeville-cuckoo clock–steampunk-Victorian curio cabinet time piece.

A museum and shop on Bourbon Street located in the former home of the second Voodoo Queen of New Orleans.

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

A dilapidated dock tells the story of Titanic's missed arrival.

A 30-acre garden inspired by the principles of modern physics.

One of the oldest medical collections in Europe focusing on rare surgical instruments.

A hip bar decorated with walls of golden skulls.