A Mexico City subway station boasts a hidden museum, complete with a working radio booth.

A New York–based physician returned home to Spain to build his own elaborate monument to Christopher Columbus.

Sculpture park built by a 50-year-old widow.

Meant to be one of the most extravagant hotels in the world, now an eerie, abandoned architectural gem in Mexico City.

A museum dedicated to the Spanish occult in a town that was terrorized by the Inquisition.

These magnificent 240-year-old machines are considered distant ancestors of the computer.

"The Most Wonderful Wonder that ever appeared to the Wonder of the British Nation."

Lithuania's outdoor sculpture trail of wooden folk art.

Staves, storm-calling, and of course, necropants.

Real bones which are said to have belonged to a Polish dragon.

Devoted Buddhists can earn enlightenment in the next life by crawling through this symbolic nostril.

A fifth-century temple improbably built into the side of a cliff.

Jurassic theme park in the small town of Erlian.

This incredible Chinese theme park may be the largest bootleg in history.

Tiny effigies of the victims of Edinburgh's famous Anatomy Murders.

Dolls of all shapes and sizes display the eras of femininity in this spooky and beautiful collection.

The world's largest collection of witchcraft regalia.