A favorite Paris bar for U.S. expats, including Gershwin, Hemingway, and James Bond.

This museum houses an imposing skeleton army comprised of creatures great and small.

Site of a classic 19th-century physics experiment to prove the earth is rotating.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the 20th century.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

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

A haunting collection of the vanished and disappearing natural world.

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

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Notorious artist squat renovated into legal studios.

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

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

Abandoned railway line circling the city of Paris.

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

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

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

God's Saharan sandbox of wrath.

The tomb of one of the greatest travelers in history.

This stucco building in North Africa was the first American-owned property on foreign soil.

One of the two original gateways into the Kasbah, this gateway is a nesting site for storks.

The designated Jewish quarter in Fez dates back to the 15th century.

Morocco's largest Jewish cemetery.

Morocco’s modern capital was once a haven for Barbary pirates, who went so far as to establish a republic of their own.

One of the tallest waterfalls in Africa is also home to a population of monkeys who enjoy the waters and the occasional guest.