An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

Serving you alcohol with a side of insanity. Also, costumes!

A beautiful but toxic fountain of mercury.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

A deadly ancient portal to the underworld.

More sculpture than building, this architecturally significant temple was built on the spot of Saint Peter's crucifixion.

Gods clash with machines in a power plant regenerated as a museum.

Oriental bazaar in the heart of Sarajevo.

A sprawling collection of books and manuscripts about ancient Greece that would have put their famed libraries to shame.

This open air archeological site houses almost as much wildlife as it does classical religious artifacts.

This legendary city has been a tourist attraction for centuries.

The topiary maze at the Habsburg hunting lodge.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

The most famous location in China was home to whole dynasties worth of imperial rulers.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

Dr Barnes' $25 billion private collection of art and arboretum.

A 56-foot tall statue of the god of fire looks out over Birmingham, Alabama.

This replica of the Greek structure is in the heart of Nashville.

A fitting attraction for the corn capital of the world.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

This immaculate and historic water garden culminates in a massive stone dining table with an inset fountain for chilling the wine of the Cardinal's guests.

Rome's ancient Etruscan rival, now a park full of ruins.