The coolest place in Orvieto (literally), this series of 440 caves has been used for millennia by locals for various purposes, including as WWII bomb shelters, refrigerators, wells and, during many a pesky Roman or barbarian siege, as dovecotes to trap the usual one-course dinner: pigeon (still seen on local restaurant menus as palombo ).
The 45-minute tours (with English-speaking guides) leave from in front of the tourist office.
