Porta Bari (Italian: [ˈpɔrta ˈbaːri]), previously called Porta de Bari, was one of the main gates of the city of Altamura, before the city walls of the city were torn down over the 19th century. Similarly to most European cities (such as Vienna), the city walls were torn down, because the new technology and military techniques employed starting from the 19th century made them useless for defense purposes.