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

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

This modern antique shop is a museum for 1980's Saturday morning cartoon culture.

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

A self-built castle made by a mysterious man.

A floating cat sanctuary on an Amsterdam canal.

Where beautiful signs live on forever.

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

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

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

A student driver's nightmare.

Rainbow-hued local gem in Venice.

A DIY art gallery/music venue/lecture hall dedicated to video game culture.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

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

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

Paris' linguistic guide to the international language of, yes, love.

A winding path built in secret on the edge of the continent.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

America's most famous piece of self-built architecture.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

Notorious artist squat renovated into legal studios.