GNGTS 2023 - Atti del 41° Convegno Nazionale

Session 3.2 - POSTER GNGTS 2023 al., 2000), canals and tunnels ( Chías et al., 2013) nowadays not visible on the surface within urban areas. Figure 1. Barracks of Carabinieri of Palermo. Location of GPR acquisition (red polygon). Investigated area and previous studies The monumental ensemble of the military district of San Giacomo (Palermo, 1816) is located in the historic center of Palermo, in the western ancient, fortified area of the city, mentioned by historians with the name Galka or Alga (from the Arabic "al-Halqah", or "the enclosure"). In this area the Kasr of the Arabs rose dominant, and later it became the residence of Norman princes and kings and transformed over the centuries until it took on the shape of today's Royal Palace. In the Galka district from the XVII century a vast military complex was set up; today the area hosting the headquarter of the Command of the Sicily Carabinieri Legion, contains several historic buildings of high artistic interest. When the military quarter and the San Giacomo hospital were built in 1622, many churches, such as San Giacomo dei Militari, Saint Mary Magdalen and San Paolo d 'Alga, were enclosed within this military complex, together with other religious buildings.