Gravina is a populous inland agricultural center of Bari which takes its name from the karst nature of the Murgia and ravines, engravings erosive very deep, similar to canyons carved by rainwater into the limestone. Of great interest is the cathedral, the church of Purgatory, .the palace Foundation Pomarici Santomasi, the archaeological area of Botromagno Finya capitulate and the Library, the oldest public library in the region.