Subiaco is a comune (municipality) in the Metropolitan City of Rome Capital, in the Italian region of Latium, 40 kilometres (25 mi) from Tivoli alongside the River Aniene. It is a tourist and religious resort because of its sacred grotto (Sacro Speco), in the medieval St. Benedict's Abbey, and its Abbey of Santa Scolastica. It is one of I Borghi più belli d'Italia ("The most beautiful villages of Italy"). The first books to be printed in Italy were produced here in the late 15th century.