Revel in the Victorian splendor of the world's oldest eating establishment inside a museum.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

This structure atop a craggy cliff in one of the most beautiful parks in Paris boasts an unbeatable view.

Ancient paintings known as the "Sistine Chapel of Cave Art."

The oldest stone house in Paris was built by its most famous alchemist.

A Parisian exterminator's shop whose storefront displays stuffed rats hanging from traps.

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

A natural arch carved by a river gave its name to the so-called "Cave of Forgotten Dreams."

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

Natural history museum celebrating biodiversity with a parade of taxidermy animals.

The first green space constructed on an elevated viaduct.

A haunting collection of the vanished and disappearing natural world.

France's most famous cemetery, with some of its most curious tombs.

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

The world's longest known cave system.

A monumental statue of RCA's mascot now sits atop a historical society roof after a life of moving around.

A museum dedicated to exhibiting remarkable outsider art.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

The trials and tribulations of marking Poe's grave.

This open air cathedral invites all faiths to worship under the only roof big enough to fit them all: the sky.

A turn-of-the-century architectural marvel built on healing mineral springs and salt licks.

You thought Santa Claus didn't exist, but it turns out you were wrong.

Symbolic attempt to overcome the issues of life.