This modern arts center is built around a gem of late-Baroque architecture.

This medieval hilltop village was abandoned at the end of the 19th century, after existing for more than 500 years.

Where Aleister Crowley taught magick in "La Chambre Des Cauchemars," his "Chamber of Nightmares."

The population of Southeast Asian primates was introduced to Mexico in the 1970s.

Legend says the building's unusual features were added at the request of a paranoid president.

Climb through the life of a Mexican hero as you ascend a 130-foot statue.

The Rio Lerma (Chignahuapan) in El Salto, Mexico, is one of the most polluted rivers in the world. It’s covered in white foam, and falling in can kill.

An artist's suburban abode looks like an architectural fever dream.

This clock was gifted to Mexico as a show of gratitude for its long history of welcoming Arab migrants.

A US military accident created the legends behind this Mexican version of the Bermuda Triangle.

This series of waterfalls tumble into a radiantly blue river.

Gilded heaven for philatelists and architecture freaks, still in full working order despite sitting atop tremulous ground.

A quirky and charming restaurant founded by artists.

One of the few places where you can visit a cenote and Maya ruins at the same time.

The ruins of an ancient Mayan city, beautifully preserved and only accessible by boat.

The burial place of some of Mexico's most prominent residents is full of macabre stories and hidden masonic symbols.

These azure waters were thought to lead to the Mayan Underworld.

Part bookstore, part café, and part forest.

A rare set of strings by famed instrument maker Antonio Stradivarius is on display in the Royal Palace.

This small museum tucked within a subway station holds pieces from Madrid's past.

Among the oldest structures in Madrid, these Moorish walls once guarded the medieval city of Mayrit.

The only urban monument in the world designed by the great surrealist painter Salvador Dalí.

"Drunken ship" sculpture memorializing the French poet in the city where he died.

The Swiss hilltop housed an early 20th-century vegetarian nudist colony.