Typically furnished old house, to better understand the habits and customs of the inhabitants of the ancient districts of the Sassi of Matera before their abandonment, which took place following the law of rehabilitation of the Sassi wanted by the Prime Minister Alcide de Gasperi in 1952. A large rock cavity ago as a frame for the entrance arch of the Casa Grotta, the only built element that leans against the cave in which the house has been created.