The celebrated eyesore created by starry-eyed sweethearts.

If you look closely at the oldest bridge in Paris, you might notice hundreds of ugly faces leering from its sides.

Weird wax anatomical models reside here, as do other anatomical specimens.

A museum dedicated to linguistics, from how babies learn to talk to endangered and extinct languages.

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

The remains of the medieval wall that once surrounded Paris with ties to the construction of the Louvre.

19th century pendulum and a clock restored by a rogue group of guerilla artists.

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

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

This mural painted by Keith Haring was done without payment as a gift to entertain the children at the Hôpital Necker.

The site of slaughterhouses that once satisfied Parisians' taste for horse meat is now home to a park and book market.

Abandoned railway line circling the city of Paris.

Once a 19th-century brasserie, this McDonald's exterior celebrates Alsatian design and the "King of Beer."

Claude Monet was baptized in this lavishly ornate Paris church.

Egyptian Revival movie palace abandoned for decades and restored in 2013.

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.

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

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

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

This emotive sculpture was originally created for the 1878 World's Fair.

A beautiful Victorian statue shows France's enduring love of the rhinoceros.

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

One of Jeff Koons’s largest sculptures and his first commemorative work.

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