Two awe-inspiring globes from the reign of the Sun King hang from the ceiling of France's national library.

The former home of France's controversial pop maestro is almost completely covered in ever-changing tributes and graffiti.

This surreal statue brings a famous French novel about a supernatural cad to arresting life.

Pitié-Salpêtrière was the dumping grounds for women who received the dreaded diagnosis of "hysterical."

A subterranean shelter remains intact under a busy Paris railway station.

An overlooked marble is the only surviving in-place 18th century example of the measurement that changed how we define distance.

An unexpected desert oasis in South America.

If you’ve ever seen a picture of Machu Picchu, then you’ve seen a picture of Huayna Picchu—you just didn’t realize it.

The Uros people live on floating reed islands in lake Titicaca.

This scalding hot river was thought to be a myth until one geoscientist made it his quest to study the mystical waters.

Nazca pilgrimage site covering 370 acres is a popular stop for archeologists and looters.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

A remote candy-striped mountain in the Peruvian Andes straight out of the pages of Dr. Seuss.

The mortal remains of an estimated 70,000 people lie in the basement of a monastery in Lima, Peru.

A rare view of a preserved Victorian science museum.

A layered tribute to the work of mosaicist Isaiah Zagar.

World's first "penitentiary," meant to be humane, drove men insane.

Statue of death tucked in the University of Medicine courtyard.

A surrealist timepiece by the artist of melting clocks.

France's national museum of scientific and industrial instruments.

A counter-culture bookstore like no other hides in plain sight in the streets of Paris.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

This massive library holds what was once the largest book collection in the world.

One of the oldest medical collections in Europe focusing on rare surgical instruments.