An ancient artistic garden parlor full of hidden water wonders.

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

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

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."

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

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

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

Natural cathedral designed by Italian artist Giuliano Mauri.

This immaculate and historic water garden culminates in a massive stone dining table with an inset fountain for chilling the wine of the Cardinal's guests.

Abandoned medieval hill town.

This sword isn't waiting for a king to pull it out. It was placed there by a saint.

Ruins of a 10th century church tucked away deep in a botanical garden.

Pilgrimage site for star-crossed lovers.

This domed temple was built in a hidden cave mouth as a refuge for sinners seeking absolution.

This 16th-century monastery has been turned into a surrealist architecture compound.

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

Crushed coral and crystals give the sand its signature coloration.

The abandoned "Ghost Mansion" was left to decay in the mountains of Northern Italy.

This quaint Italian town keeps losing ground as the sides of its plateau slowly erode.

An Italian hillside ghost town.

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

Sitting on an Italian hilltop is this surreal fortress built by the mad inventor of electrohomeopathy.

Stalactites and stalagmites in a beautifully lit cave.