The first green space constructed on an elevated viaduct.

Sacked by Vikings, blessed by William the Conqueror, dealt a fatal blow during the French Revolution—these ruins have seen it all.

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

A favorite Paris bar for U.S. expats, including Gershwin, Hemingway, and James Bond.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

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

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

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

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Arcadia is home to a haven for nature geeks and 80s TV lovers alike.

This star-studded Old Hollywood restaurant is where fettuccine Alfredo made its United States debut.

Coastal dunes, site of buried Egyptian movie set and former utopian colony.

A popular winter vacation destination for migrating monarch butterflies.

Colorful Native American paintings are hidden within this small cavern.

Acres of natural wonders left behind by a socialite-turned-gardener.