This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Abandoned railway line circling the city of Paris.

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

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

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

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the 20th century.

This bridge was constructed from the rubble of the infamous Bastille.

Beggars were miraculously "cured" of their fake ailments when they returned home to this 17th century Paris slum each night.

Hundreds of secret cabinets built into the walls of legendary poisoner's private work room.

The opulent home that inspired Tintin's Marlinspike Hall and the adventures within.

Museum in a swimming pool where the water still flows.

This statue honors the thousands of Allied avians that served and died for France during World War I.

Lyon, France is home to two remarkably preserved Roman theaters, one dating back to 15 BCE.

Hundreds of hidden passageways weave through the old quarters of Lyon.

The world's largest reflecting pool is just two centimeters deep.

Life and death are on parade at the most reliably perilous site of “the Great Migration.”

Strolling through these vintage locomotives offers a surprising amount of insight into the history of Kenya.

Get tall with nature's lankiest beasts and their warthog friends at this Kenyan preserve.

A popular European tradition makes its way to the states on one of America's most famous bridges.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

This private residence was the template for one of the most beloved television homes of all time.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.