Grottaferrata is a comune (municipality) in the Metropolitan City of Rome Capital, situated on the lower slopes of the Alban Hills, 20 kilometres southeast of Rome. It has grown up around the Abbey of Santa Maria di Grottaferrata, founded in 1004. Nearby communes include Frascati, Rocca di Papa, Marino and Rome.

Rocca di Papa is a small town and comune (municipality) in the Metropolitan City of Rome, Lazio, Italy. It is one of the Castelli Romani about 25 kilometres (16 mi) southeast of Rome on the Alban Hills. It is close to the other communes of Velletri, Rocca Priora, Monte Compatri, Grottaferrata, Albano and Marino. It is the center of the Regional Park known as the "Parco Regionale dei Castelli Romani".