This bustling Italian plaza is built on the ruins of an ancient Roman amphitheater.

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

Erotic art covers the walls of the largest ancient pleasure palace.

The only visible remains of this ancient Greek underground temple is its roof protruding from the earth.

Skulls and skeletons are omnipresent in this church dedicated to souls trapped in purgatory.

People have been living in the cave houses on this Italian hillside since the Neolithic era.

A fascist-era rural village abandoned since the early 1980s.

An eccentric artist's abode in this small Italian town has been transformed into a surreal temple of mosaic madness.

An abandoned quarry hides an open-air gallery of huge sculptures, some made from the rubble of 9/11.

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

Largest necropolis in the Mediterranean.

Every day is like Christmas on this street where the traditional Neapolitan nativity scene comes to life.

This abandoned Brutalist treehouse is a hidden architectural relic.

These gutted monastery ruins still stand proudly in the middle of the Italian countryside.

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

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

The bomb-ravaged remains of of a colossal Neptune.

An abandoned village, frozen in time by the threat of a landslide.

A German town is growing a building out of trees.

A former ironworks that was the first UNESCO industrial site.

Harry Potter’s Hogsmeade Station is also a charming blast from the past situated in North Yorkshire.

In this desolate valley resides a gorgeous set of rocks sporting a technicolor design.

The second-highest village in Lazio has attracted artists for 400 years and is now a spectacular open-air art gallery.

Southern Italy's spinning top village.