Renaissance villa and gardens complete with a tormented colossus.

Many famous English poets including Elizabeth Barrett Browning are laid to rest at this Swiss-owned cemetery in Florence.

The graveyard is filled with beautiful funerary art and boasts breathtaking views of Florence.

The Roman Emperor's lost summer home and grotto full of enormous sculptures sit along the Italian seashore.

This Roman underground canal was the longest tunnel ever built until the late 19th-century.

A 16th-century horror show built in a lovely Italian garden.

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

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

The remains of a town so thoroughly destroyed by French forces that the citizens simply left.

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

Largest necropolis in the Mediterranean.

The studio built by fascists in the hopes of "reviving the film industry" with the occasional propaganda film opportunity thrown in.

This beautiful park on the outskirts of Rome protects the ruins of two colossal ancient aqueducts.

The final resting place of the poets Shelley and Keats.

The underground sanctuary of a mysterious ancient cult.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

A forgotten "city of water" underneath the famous Trevi district.

A burial vault located under Tiber Island in the middle of the Italian capital.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

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

This large, circular tomb is the final resting place of the first emperor of Rome.

This 1st-century CE Roman bath sits under a carpark.

If James Bond bungee-jumped off the side of a 720-foot dam, would you do it too?

The train platform where Jews were sent to concentration camps is now preserved as a Holocaust memorial.