The first green space constructed on an elevated viaduct.

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

One of the largest sculpture collections in the U.K. features history's greats, from Bob Dylan to Galileo, in bronze.

Museum celebrating the history of computers, especially their role in codebreaking.

A secret garden in a picturesque Edinburgh village has inspired artists for centuries.

The most loyal of little dogs, or a Victorian era publicity stunt?

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

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

A study of Fascist era Art Deco design in Italy.

This Italian stadium makes liberal use of fascist statuary to evoke classical sporting arenas.

Abandoned village in Sicily built during the agricultural reforms of Mussolini.

The only museum with its curator—and her pets—buried inside.

Now an entertainment complex, the Lingotto building was once an avant-garde auto factory with a test track on the roof.

The forbidden island of the Tuscan Archipelago may still contain buried treasure.

Two very green residential towers cleaning the air in one of Europe's most polluted cities.

A formerly opulent Italian village is now a crumbling ghost town that no one really knows what to do with.

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

These medieval skyscrapers dominate the skyline of this small Tuscan town.

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

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.

The once forbidden "secret cabinet" of erotic art from excavations of Pompeii and Herculaneum.

Natural cathedral designed by Italian artist Giuliano Mauri.

2300-year-old Roman road connecting the empire.