This 18th-century sundial was designed to calculate the date of Easter each year.

An unusual number plate signifies the building's saucy past.

The spiral staircase hidden inside this giant Parisian column was likely built for Catherine de Medici's astrologer.

Noirish green neon marks the location of one of the oldest private detective agencies in France.

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

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

A counter-culture bookstore like no other hides in plain sight in the streets of Paris.

The narrowest street in Paris.

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

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

Notorious artist squat renovated into legal studios.

A Parisian exterminator's shop whose storefront displays stuffed rats hanging from traps.

A 16th-century fountain marks the site of a lost medieval cemetery once filled with mass graves.

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

The final resting place of the "father of special effects."

The tomb of history's greatest potato promoter is surrounded by tubers.

How did a French journalist’s grave become the sexiest statue in the cemetery?

Stripes of human ashes cover a back lawn in the most sought-after burial grounds in Paris.

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

Ordinary art transforms to extraordinary thanks to locals' quirky sense of humor.

The celebrated eyesore created by starry-eyed sweethearts.

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.