The world's most active stratovolcano is almost always erupting.

Museum dedicated to literary greats of the Romantic Period is also the home in which Keats met his untimely end.

This magical-looking island is notorious for the misfortunes suffered by its owners.

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

Gigantic mosaic sculptures of the figures on Tarot cards fill this colorful Tuscan garden.

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

Virgil's many-mouthed gateway to the underworld.

Secret refuge and museum of the Duke of Florence.

Crossing this suspension bridge feels like walking through the sky, a fitting tribute to the head of the Apollo program.

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

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.

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

Where Aleister Crowley taught magick in "La Chambre Des Cauchemars," his "Chamber of Nightmares."

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

A sunken idol welcomes parishioners to Davy Jones' Locker.

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

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

This shining multicolored metro station deep under Naples is said to be the most beautiful in Europe.

Dug as a secret royal escape route, the tunnel became a wartime bomb shelter and dumping ground for vintage cars.

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

This medieval Italian town is a sheer (and beautiful) cliffside defense.

Eco-village hidden in the foothills of the Alps that created a massive system of psychedelic underground temples.