A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

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

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

Paris' linguistic guide to the international language of, yes, love.

The first green space constructed on an elevated viaduct.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

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

The video game-themed street art first popped up in the French city.

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

A surrealist timepiece by the artist of melting clocks.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

A mechanized clock where a man fights off a dragon, crab, and rooster.

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

A series of abstract, silly sculptures represent the works of a great modern classical composer.

In the best of all possible worlds, everyone will get a chance to see this statue in which Voltaire's heart is interred.

Notorious artist squat renovated into legal studios.

The celebrated eyesore created by starry-eyed sweethearts.

An image of the legendary saint stands in the shadow of a cathedral she liberated.

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

A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

Hauled from the water's depths, Henry VIII's flagship is preserved in this capsule-shaped museum.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.