This “via cava”, a multitude of narrow streets that lead like canyons through the tuff rock, is also dug into the rather soft tuff of the area. The Etruscans were the originators of this bizarre road system more than 2,500 years ago. Why the “vie cave” were created and for what purpose they were used remains a mystery to scientists to this day: Were the ravines merely connecting and supply routes between Etruscan settlements? Did you serve to drain the rainwater? Or were they mystical places of worship? The proximity of the Etruscan people to mysticism and astrology - and the numerous necropolises that one encounters when walking through the paths speak for the latter point of view. This one is already quite dilapidated at one end and you have to look for a path between fallen rocks.