The Frasassi Caves are underground karst caves located in the Regional Natural Park of the Gola della Rossa and Frasassi, in the municipality of Genga, in the province of Ancona. The discovery of the Frasassi Caves dates back to 25 September 1971 by the speleological group of the CAI of Ancona. In 1972, the municipality of Genga and the Province of Ancona formed the Frasassi Consortium with the aim of safeguarding and enhancing the complex of Frasassi Caves. Inside the karstic cavities you can admire natural sculptures formed by calcareous stratifications over 190 million years thanks to the work of water and rock. The shapes and sizes of these natural works have stimulated the imagination of speleologists, who after discovering them have "christened" them in a curious way. It is still possible to visit the caves with tourist guides.