Caligula's colossal pleasure ships, discovered by Mussolini only to be lost in flames.

When this funny little building went up in the 19th century, most people thought it would simply fall over.

The former home of an Italian artist is now a shrine to his ambitious works.

An unsettling painting of three faceless sisters that is surrounded by history and legend.

A military museum, art park, mausoleum, and architectural oddity all on one fascist's estate.

Things seem to roll, flow and run uphill on this short patch of road near Ariccia, Italy.

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

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.

The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.

This Italian stadium makes liberal use of fascist statuary to evoke classical sporting arenas.

Ernest Hemingway was the first to sign this colorful wall covered in thousands of celebrity signatures.

This ancient altar emerges from the thick forests to reveal the mysteries of Etruscan sacrificial rituals.

The 1,000-year-old abbey is the birthplace of modern musical notation.

A fascinating assortment of cave dwellings, medieval ruins, and sarcophagi are being devoured by the forest.

Does this strange mural depict witches battling beneath a penis tree?

A medieval fresco which reminds visitors that death will come for us all.

The best preserved Paleochristian basilica in Rome hides a number of oddities and secrets.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

Ancient ruins hidden underneath a modern luxury hotel.

Where Venice's gondolas go for a tune-up.

The Cathedral of St. Ambrose has been hiding a special parishioner within its walls.

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

Explore the quarry where the marble was sourced for Michaelangelo's David.

The city of Palestrina was built around this magnificent terraced sanctuary dedicated to the pagan goddess Fortuna.