Orvieto, Italy
Orvieto in central Italy was settled in the 9th century BC by the Etruscans, an ancient naval kingdom believed to have ruled all of Italy. A city older than Rome, its location was chosen due to its strong defensive position. An underground cave network was dug beneath the city with over 1,200 passages spread like a maze, wells that supplied water and storage areas for food. It's an entire city beneath the city! With its history hidden deep underground, Orvieto is an ancient city full of mystery.