The Frasassi Caves are a karst cave system in the municipality of Genga, Italy, in the province of Ancona, Marche. They are among the most famous show caves in Italy.
Wikipedia https://en.wikipedia.org/wiki/Frasassi_Caves
Official website http://www.frasassi.com/
Email grotte@frasassi.com
Phone +39 732 97 211
Address (Unnamed Road), 60040, Italy
Coordinates 43°24'9.742" N 12°58'33.316" E