Constantly maintained, this organ is playing a six-century long composition by John Cage.

Hundreds of stone stairs and a winding medieval bridge connect this haunting Spanish island to the mainland.

A replica of the famous memorial statue at the Normandy American Cemetery hides in an office building in downtown D.C.

This ominous Albanian fortress houses tanks and downed planes as a reminder of their victories over Western imperialism.

A complex, nine-layer maze on the grounds of a Venetian doge's playground.

This Italian foot path winds through the mountains via 52 individual tunnels.

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

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

A young Italian couple has been locked in an embrace for over 6,000 years.

The middle finger of modernity.

Secret refuge and museum of the Duke of Florence.

Renaissance villa and gardens complete with a tormented colossus.

After World War II, this former concentration camp in Northern Italy became a refuge for those displaced by the war.

This enchanting 600-year-old tree is so magical it inspired the beloved tale of Pinocchio.

The towering Pinocchio stands 63 feet tall in the Italian village his creator frequented as a child.

The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.

Walk through a fairytale in Tuscany.

Home to Hollywood history and a very special salt crystal.

A climbing route in the mountains of Italy’s Dolomites, built for soldiers during World War I.

A star-shaped fortress town fort built in the geometric model of the Renaissance utopian city.

Martin Bricelj Baraga's monolithic sculpture measures the blueness of the sky, and changes color to match it.

A unique seaside cave where Aleister Crowley faked his own death.

The walls of this medieval church are covered with perfectly preserved frescos, including a pristine example of the Dance of Death.

The largest ice cave in the world is thought to be the entrance to hell according to Austrian legend.