A curious collection of locks and keys.

A small museum tells how a group of Russian Mennonites ended up in the Paraguayan Chaco.

A lush vertical garden blooming in the heart of Paris.

The first green space constructed on an elevated viaduct.

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

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

This facility has manufactured stunning tapestries for France's royalty ever since the 17th century.

If you look closely at the oldest bridge in Paris, you might notice hundreds of ugly faces leering from its sides.

The storefront of a ramshackle Parisian puppet theater.

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

An iconic and eccentric bar for "Manouche" Jazz music keeps expanding its space—and its influence.

An antique curios dealer and hybrid taxidermist.

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

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

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

The narrowest street in Paris.

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

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

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

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