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

Noirish green neon marks the location of one of the oldest private detective agencies in France.

Walk through spectacular aisles of hanging meat and wagon wheel–sized cheese at the world's largest wholesale food market.

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.

Egyptian Revival movie palace abandoned for decades and restored in 2013.

Behind the pink curtain, Au Bonheur du Jour, an art gallery of erotic archives.

Down a cobblestone alleyway is a museum dedicated to Romanticism, with a secret garden.

A museum of magic with a Sadist past.

France's national museum of scientific and industrial instruments.

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

A counter-culture bookstore like no other hides in plain sight in the streets of Paris.

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

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

Century-old shop, specializing in Occult products.

Enjoy a slice while browsing the world's largest collection of pizza memorabilia.

The first American department store, and home to the largest operating musical instrument in the world.

Dr Barnes' $25 billion private collection of art and arboretum.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

A rare view of a preserved Victorian science museum.

A layered tribute to the work of mosaicist Isaiah Zagar.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

The only tennis court that falls under the jurisdiction of the central bank.

Architecture lovers won’t stop touching the National Gallery's 19.5 degree marble prow.

A historic arena where the Beatles played their first concert in the U.S.