Ruins of a Carnegie family mansion on Cumberland Island.

Built some 700 years ago, this Taíno ceremonial site features ball courts, petroglyphs, and evidence of ancient astronomy practices.

This 20-foot mountain is made up of some 15,000 mannequins—if you visit, you can even take a piece home with you.

Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

Run a wash cycle while sipping a latte at this community-oriented café.

These ancient rock graves were featured on the cover of a Black Sabbath compilation album.

This airport currywurst stand is made out of retro airplane parts.

A touching statue dedicated to Japan's first therapy dog.

After being bombed and largely abandoned, this former railway workshop has been transformed into a lively market space.

The best Tiki bar in Las Vegas.

A mysterious and terrifying public art goblin seemingly meant to inspire local legend.

An ancient system of freshwater caves filled with animal bones, including that of species long-extinct.

A lawless town deep in Death Valley was famous for its riches and death rate.

The tiniest tiki room in San Diego.

A small pack of an ancient, hairless breed of dog once believed to guide souls through the underworld lives on its grounds.

Explore the atmospheric ruins of an abandoned convent in the dense forests of Mexico's first national park.

The ruins of an ancient temple to the Aztec wind god discovered in the middle of a metro station.

A scientific repository of goiters, boils and other ailments throughout Mexican history.

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

Visiting this cacophonous collection of vintage novelties is like stepping into the mind of a crazed toymaker.

Twelve natural mummies are displayed in the crypt of this former monastery school.

A jaw-dropping "megalibrary" that turns book-browsing into a geometric adventure.

66,000 pieces of art, donated by one of the world's richest men.

A church dedicated to the Mexican skeleton saint.