A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

This water tower slanted at an uncomfortable angle off the old Route 66 was an ingenious marketing ploy.

King Ludwig I's collection of beautiful women.

The fairy tale castle of the "fairy-tale king."

A stonemason's hilarious revenge came in the form of this peculiarly positioned gargoyle.

These paved rills bring freshwater into Altstadt and could spell wedding bells for whoever stumbles into the waters.

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.

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

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

A lone cannonball remains lodged in the walls of the Hotel de Sens as a sober reminder of a revolution.

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

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

The very center of Paris is surrounded by a bevy of strange good luck rituals.

This demon atop the Notre-Dame de Paris looks utterly bored.

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

The approximate spot where the last Grand Master of the Knights Templar was put to death.

The celebrated eyesore created by starry-eyed sweethearts.

A charming little museum founded by the designer of the Statue of Liberty.

The birthplace of the builder of the Statue of Liberty is now a museum dedicated to his work.

This unusual piece of Renaissance art depicting the bodily horror of crucifixion and skin disease may have been inspired by fungus-induced hallucinations.

A copy of the Statue of Liberty greets visitors to the birthplace of Auguste Bartholdi.

This modern French ossuary contains the jumbled bones of 130,000 WWI soldiers.

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