Built as a defensive structure, this medieval walkway road offers a unique view of the village of Brisighella.

The marble facade hides a little-known medical museum with early surgical instruments and rare copies of canonical texts.

As can be expected from a centuries old church built in a canal city, the undercroft of this house of worship is beautifully flooded.

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

Originally a leper colony, the island is now an Armenian monastery that's home to an incredible manuscript library and eclectic museum.

Filled with goldfish swimming in a shallow pool of sea water, this ancient crypt is more wishing well than burial site.

This 6th-century church has the largest and best-preserved collection of Byzantine mosaics outside Constantinople.

Psychoanalyst Carl Jung reported a paranormal experience after visiting this mosaic-lined Roman baptistry.

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

South of Bologna, a limestone grotto with a protruding waterfall and a floor full of cave pearls.

The city of Parma's cathedral is home to one of the greatest illusionistic frescoes of the Renaissance.

A completely underground tour following the path of the most precious element: water.

Ham is serious business at the Prosciutto Museum-Serious, delicious business.

Stuck in the arcade of Casa Isolani are three arrows of mysterious origins.

This building features dozens of faces along its facade, although one is a bit chilling.

This Renaissance palace features a unique architectural design and is now home to the Ferrara National Art Gallery.

A fortress on this island housed the mysterious prisoner known as the "Man in the Iron Mask" for more than a decade.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

This trail was once used to smuggle cigarettes, sugar, and other black market goods between Italy and Switzerland.

A fake medieval village in the middle of Turin.

This fountain is dedicated to the workers who perished constructing the Fréjus Rail Tunnel.

A landmark in the history of technology and computing is hidden in a tiny Baroque chapel.

The intricate geometry inside this Baroque-style dome was designed to create "terror of the human soul."

This building has a giant piercing through one of its corners.