The courtyard of this small Marinid madrasa is a dazzling example of intricate Islamic architecture.

A bike train runs along a disused railway line through the tranquil French countryside.

A beautiful and classically designed villa, with an hourly infestation of monsters.

This professional clown's home is an outsider art wonderland.

Do these monsters look familiar? The gargoyles on this church are all from pop culture.

The narrowest street in Paris.

The former home of France's controversial pop maestro is almost completely covered in ever-changing tributes and graffiti.

Stroll through retro Paris while shopping for old postcards and discarded doll heads.

Known as the "Dodo Manège," this carousel features a herd of animals that have disappeared—or may be gone soon.

This Parisian café sticks almost exclusively to an ethos of reuse.

This massive library holds what was once the largest book collection in the world.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A collection of Inukshuks built and left by several hikers.

In the middle of one of South America's most historic walled cities lies a bar with an enormous collection of Soviet memorabilia.

Perched atop the highest hill in Cartagena, this 17th-century convent offers spectacular views of the city.

This elegant Colombian fortress was one of the torture headquarters for the Spanish Inquisition.

A cozy bookstore and coffee shop in the heart of Cartagena's Old City.

The caldera of this mini-volcano has been turned into a naturally heated mud bath.

The religious shrine that Pablo Escobar's men would allegedly visit before completing a mission.

This unofficial museum details the rise and fall of Colombia's most notorious narcotrafficker, Pablo Escobar.

Outdoor escalators and art have helped change what was once a notoriously dangerous part of Medellín.

An unusual and beautiful form of mass transit serves the city's steepest neighborhoods.

A magical world of elves and fairies tucked amongst the trees in Colombia.

A museum showcasing the history of sugarcane with a rich history.