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. The caves, discovered by a group of Ancona speleologists led by Giancarlo Cappanera on 25 September 1971, are situated 7 kilometres south of Genga, near the civil parish of San Vitt…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. The caves, discovered by a group of Ancona speleologists led by Giancarlo Cappanera on 25 September 1971, are situated 7 kilometres south of Genga, near the civil parish of San Vittore and the Genga-San Vittore railway station.