The Bourbon royal family had this unique octagonal hunting "cottage" built on a tiny islet in Lake Fusaro.

Abandoned cemetery of the former Psychiatric Hospital of Volterra.

These pools have been abandoned for over 20 years.

This scenic fortress dates back at least 2,400 years to the time of Magna Graecia.

The titular "little arch" near this Italian resort is one of the most popular diving spots in the country.

A narrow opening between the mountains of the Amalfi Coast creates a scenic hidden beach.

This 21st century cabinet of curiosities includes dinosaur bones, moon rocks, film memorabilia, and more.

Windblown rock formations in an ancient Roman quarry.

This overgrown mountain village has been abandoned for nearly a century.

Ancient cave tombs known as the "houses of fairies."

This serene, turquoise lake in an extraordinary nature reserve showcases a rare natural phenomenon.

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

A semi-abandoned village destroyed by U.S. bombings during World War II dominates the valley of Turano.

The sunlight passing through the opening of this huge cave system creates a magical effect.

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

A magnificent Neogothic tomb hides within this Italian fairytale-like forest.

Amalfi's pre-industrial history is slowly being engulfed by the lush vegetation of the Ferriere Valley.

An eerie, little-known Neapolitan museum filled with preserved human remains.

This church carved into the rocks is full of enchanting stone statues.

The forbidden island of the Tuscan Archipelago may still contain buried treasure.

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

A dreamlike medieval church dug into the tuff rock, with unusual carvings and possible traces of the Templar knights.

A collection of grotesques lines the walls of this Italian villa.

A magnificent waterfall is also home to the remains of a Roman hydraulic engineering system.