The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

The celebrated eyesore created by starry-eyed sweethearts.

A mud statue stands in the dark tunnels, seeming to hold up the weight of the city above.

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

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

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

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

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

With a history of slaughter, feast, and famine, remnants of the pork industry decorate this area--even its church.

The remaining relics of the patroness of Paris lie in a chapel under a striking double spiral staircase.

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

The personal library of the founder of modern neurology is open to visitors.

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

A series of abstract, silly sculptures represent the works of a great modern classical composer.

In this Parisian garden's grotesque former life as a zoo it fed exotic animals to the bourgeois and put humans on exhibit.

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

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

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

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

A modern-day Lascaux cave underneath Paris.

The subterranean "lake" below the Paris opera house inspired the Phantom of the Opera's lair.

The curious underground history of keeping Paris clean.

Exquisite wall sculptures carved in secret by an early quarryman in an obscure corner of the Paris Catacombs.

The first green space constructed on an elevated viaduct.