Something's watching you.

Architect Le Corbusier built his friend a cubist house to match his impressive collection of cubist art.

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

135 bronze medallions mark a French meridian line which once rivaled the hotshot Greenwich timeline.

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

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

Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

The first green space constructed on an elevated viaduct.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

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

A majestic lion statue guards this Parisian botanical garden, and feeds on an unsettling item.

Indents in the pavement are all that remain from a grisly death machine in Paris.

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

A museum of magic with a Sadist past.

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

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

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

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

Notorious artist squat renovated into legal studios.

Abandoned railway line circling the city of Paris.

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

A micro-communist utopia in Spain with no police, no mortgages and full employment.

The odd cement nubs littering this Spanish square are actually the entrances to a series of buried silos.