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.

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

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

Part bookstore, part café, and part forest.

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

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

This shrine dedicated to a legendary swordsman has become a pilgrimage site for the ill and infirmed.

Transport yourself to the 1980s era of video games at this themed restaurant and bar.

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

This Queens hospital has stood abandoned for almost 20 years after its patients were secretly relocated in the dead of night.

Prove you deserve to be fed by Kenny Shopsin.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.