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

Notorious artist squat renovated into legal studios.

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

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

Executions were once held near this beautiful 18th-century fountain.

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

The history of radiation is on safe display at the foot of a radiation science laboratory.

Two awe-inspiring globes from the reign of the Sun King hang from the ceiling of France's national library.

During the summer months, giant teddy bears take over Paris near Les Gobelins metro station.

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.

The first green space constructed on an elevated viaduct.

A tribute shrine where the Space Invasion street art movement started.

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

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

The narrowest street in Paris.

A surrealist timepiece by the artist of melting clocks.

An overlooked marble is the only surviving in-place 18th century example of the measurement that changed how we define distance.

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

Abandoned railway line circling the city of Paris.

On any given day this sprawling market houses literally tons of government-regulated gold, gems, and precious metals.

This mesmerizing architectural wonder will take your breath away with its unusual color patterns.

This fort dates back to 1588 and was colonized by the Portuguese, Dutch, and English and sits prominently on the Indian Ocean where azure water lap the coast.

Does this 10-foot-tall statue carved into a rock face depict a king afflicted by a skin condition or a Buddhist figure?

Known as the most scenic route in Sri Lanka, this train line is steeped in history and offers an unparalleled view of the country.