Mexico City's largest market contains a Willy Wonka-esque wonderland.

These haunting ruins of a 700-year-old Prehispanic city have witnessed centuries of wars and massacres.

A disquieting Aztec sculpture displays hundreds of stone skulls representing the victims of human sacrifice.

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

A church dedicated to the Mexican skeleton saint.

The famous artist couple lived and worked here, in two different houses separated by a bridge.

Superstitious? Discover the witchy side of Mexico through its largest esoteric market.

Frida Kahlo's childhood home, now a museum of her life and works.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

These expertly crafted, scientifically accurate glass sea creatures were once an international phenomenon.

In upstate New York, gorgeous waterfalls and a watermill are slowly being reclaimed by nature.

This art center is way beyond your average pumpkin-carving operation.

A six-story treehouse offers spectacular views of New York's Finger Lakes region.

Home on the Hillside, and home of the first breakfast cereal.

The absurd creation is a compulsory destination for selfies in Buffalo.

One of Frank Lloyd Wright's greatest—and favorite—architectural masterpieces was almost lost.

This Frank Lloyd Wright summer house was designed along Lake Erie as a retreat for a client's wife.

A collection of the best toys ever made, The National Toy Hall of Fame is filled with kids, fun, and for some reason, a bird preserve.

Comprehensive gaming collection of over 30,000 electronic games and consoles.

The remains of a failed subway in upstate New York is now an underground graffiti bunker.

The floor-to-ceiling collection in an old factory is a unique alternative to stuffy galleries.

This former coal gasification plant found a curious second life as a popular public park.

A house filled to the brim with oddities and curiosities.

Seattle's own bad art museum located inside Cafe Racer.