A new sculpture calls attention to climate change in the centuries-old city it threatens.

A volcanic old faithful, Stromboli has been erupting continuously for the last 2000 years.

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

Italian cave with exceptional acoustics and an unsavory history.

"Stairs of the Turks", a chalky white cliff eroded conveniently into stairs, allowing for easy pillaging.

Bell tower juts out from a village buried under a lake.

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

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

Go inside to really appreciate this 500-year-old technological masterpiece.

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

On rare days, this abandoned castle's gatekeepers open its doors, revealing the eye-popping splendor hidden inside.

The giant skeleton sculpture is surprisingly well-traveled.

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

The underground sanctuary of a mysterious ancient cult.

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

According to the local folklore, the myriad colors of this lake are the result of a lovelorn wizard's blunder.

The glowing blue Nymphaeum of Emperor Tiberius.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Geothermal waterfalls in Tuscany.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

Renaissance villa and gardens complete with a tormented colossus.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

Stalactites and stalagmites in a beautifully lit cave.