Also known as "Hell Alley," this tiny street in Imola gained its name in a bloody episode in the 16th-century.

A Prada store in the West Texas desert that is never open for business.

Norway has built what may be the world's most beautiful public toilet.

A once-thriving hotel in the Swiss Alps couldn't compete with climate change.

Some believe that this ancient mural depicts technology far ahead of its time, but in reality it's nothing quite out of place.

The ruins of this Roman temple dominate the small city in southern Lazio.

Is this statue at Naumberg Cathedral the fairest of them all?

A 130-year-old urinal is the oldest of Stockholm and perhaps all of Sweden.

The remains of this medieval Roman road and lookout towers dot the rugged coastline of southern Lazio.

An abandoned railroad tunnel is now filled with bioluminescent bugs.

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

This beautiful "lagoon" is actually a toxic soup filled with cars, carcasses, and trash. When warnings couldn't stop people from going for a dip, the town dyed it black.

Of all the houses that grace this neighborhood, only one is a testament to surreal architecture.

To fit bodies into this Renaissance crypt, they were first left to decompose in the crypt's rotting room.

An ancient tree that was once the favorite of a young Swedish royal.

These abandoned Cold War-era bunkers are now a designated refuge for endangered bat species.

This museum in the famously blue neighborhood of Sidi Bou Saïd showcases a traditional Tunisian lifestyle.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

This cave system allegedly holds the "metallic library" of a lost ancient civilization.

Was this cave created by Hercules's wrath, the devil, or volcanic activity?

A trio of giant wooden megaphones turn up nature's volume in this Estonian forest.

This medieval hilltop village was abandoned at the end of the 19th century, after existing for more than 500 years.

One of the earliest depictions of an Arthurian scene that is shrouded in mystery.