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

Secret refuge and museum of the Duke of Florence.

This museum is rotten with a century of wax medical deformities.

An Italian ghost town that fought obscurity, until a mysterious illness brought it to its knees.

One of the largest caves in the world open to the public.

Walk through a fairytale in Tuscany.

An abandoned Roman salami factory has found new life as an art space home to 200 squatters.

Romans built the world's tallest artificial waterfall in 271 BC.

This Tuscan lake hides a 13th century town that is still visible when the water recedes.

The astonishing collection of an infamous criminologist.

This abandoned Brutalist treehouse is a hidden architectural relic.

More sculpture than building, this architecturally significant temple was built on the spot of Saint Peter's crucifixion.

The Sighignola summit on the Swiss border offers views so breathtaking it's been named one of the most beautiful places in Italy.

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

This picturesque Umbrian city has a subterranean side that has long remained hidden.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

A sunken idol welcomes parishioners to Davy Jones' Locker.

Virgil's many-mouthed gateway to the underworld.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

The remains of a town so thoroughly destroyed by French forces that the citizens simply left.

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.

A Milanese café entirely designed by the American director Wes Anderson.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.