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

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

An off-the-beaten-path boutique stuffed with an eclectic collection of upcycled goods.

The first green space constructed on an elevated viaduct.

This Parisian fountain is a little bit fantasy and a little bit nightclub.

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

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 museum of carnival attractions where you are invited to ride the rides.

Paris' linguistic guide to the international language of, yes, love.

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

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

A secret door leads to this cozy dive that sells only “milk.”

Anonymously sculpted and donated, these sculptures made from poetry books and pages are sprinkled around the city.

A verdant 17th-century-style garden hidden along Edinburgh’s Royal Mile.

This observatory within Europe's first dark sky park offers stunning views of the night sky.

Large-scale contemporary artworks tower over fields and lurk in forests around a Jacobean manor house.

At high tide this strange footbridge appears to have no purpose whatsoever.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.