142 ceramic steps become a mosaic once a year.

Dramatic sea stacks adorn the coast of this small village on the Adriatic coast.

A lover's walk between hilltop towns, decorated with graffiti love notes.

This winding road through an Italian canyon may be the most scenic drive in the world.

"Stairs of the Turks", a chalky white cliff eroded conveniently into stairs, allowing for easy pillaging.

100 year tradition of fist fights, marked by marble footsteps.

This centuries-old Italian chapel hangs midway down a sheer cliffside.

On rare days, this abandoned castle's gatekeepers open its doors, revealing the eye-popping splendor hidden inside.

Five candy-colored villages on the Italian Riviera.

Medieval town turned hippie commune, once home to the secret foreskin of Jesus Christ.

According to the local folklore, the myriad colors of this lake are the result of a lovelorn wizard's blunder.

Hidden in an Italian forest is a completely homemade amusement park that has taken a lifetime to create.

The glowing blue Nymphaeum of Emperor Tiberius.

Geothermal waterfalls in Tuscany.

Architectureal fantasy quarter of Rome.

A hidden bathhouse in one of Stockholm's oldest and busiest neighborhoods is open to anyone who can find it.

This Stockholm light tower can be controlled by anyone with a smartphone.

A Parisian exterminator's shop whose storefront displays stuffed rats hanging from traps.

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

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

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

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

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

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