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

This airfield is home to a number of retired vintage planes in various states of disrepair.

Colorful murals stationed throughout Charlotte bring poetry to everyone.

A wonderful display of arts and crafts handmade by local artisans in the Southern Appalachians.

Traditional Appalachian dances such as the Georgia Rang Tang and the Shoo-Fly Swing are kept alive at this weekly event.

The largest medical and anatomical collection in France lies hidden from the public.

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

A 16th-century fountain marks the site of a lost medieval cemetery once filled with mass graves.

Got apples?

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

The largest puppetry museum in the United States houses the world's most complete collection of Jim Henson artifacts.

The Battle of Atlanta in 360 degrees, featuring a corpse that bears a striking resemblance to Clark Gable.

A museum which takes visitors to the côté obscure of Paris.

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.

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

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

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

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

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