A 400-year-old church covered floor to ceiling in ex-voto offerings from the faithful.

What looks like a normal building is really a hollow facade hiding a subway vent.

This Parisian gem is one of the most incredible ethnographic museums in the world.

A magical, macabre wax museum, beloved by locals, uses real artifacts to depict an assassination from the French Revolution.

Former hunting lodge of a duke who was an avid collector of impressionist works.

The industrial architecture honors the laborers who brought the Exposition Universelle of 1900 to life.

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

Walk through spectacular aisles of hanging meat and wagon wheel–sized cheese at the world's largest wholesale food market.

A French artist's vague warning hangs over Belleville.

The Argonaute submarine was the French navy's pride and joy in the 1950's.

An odd museum dedicated to French fakes.

The Sun King's military models, saved from the Louvre.

An immersive projection art installation uses sound, scale, and light to take visitors inside classic works of art.

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

A museum which takes visitors to the côté obscure of Paris.

This structure atop a craggy cliff in one of the most beautiful parks in Paris boasts an unbeatable view.

One of the oldest masonic museums in Paris.

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

This innocuous-seeming building is actually the remnant of a major wartime brothel.

Beggars were miraculously "cured" of their fake ailments when they returned home to this 17th century Paris slum each night.

This little-known relic crypt holds stolen parts of a Roman Empress.

The floorboard scrawling of a tragic madman is on public display outside a Paris hospital, much to the dismay of its opponents.

Despite being considered a thoroughly American sport, basketball's oldest surviving playing field is found in the basement of a Paris YMCA.

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