for its white walls and its typically white-painted architecture. Monuments in their own right, the town's largest buildings are the Ostuni Cathedral and the Bishop's Palace, together with a number of palazzi of local aristocratic families: Aurisicchio, Ayroldi, Bisantizzi, Falghieri, Ghionda, Giovine, Jurleo, Marseglia, Moro, Palmieri, Petrarolo, Sansone, Siccoda, Tanzarella, Urselli and Zaccaria.

In the surrounding countryside there are typical Pugliese "masserie", fortified large estate-farms,