Located in the Casamates, it is an interactive multimedia space where the history of Portugal is reconstructed from medieval times to the contemporary era, with special emphasis on the Peninsular Wars and the siege of Almeida. It consists of 20 rooms and corridors once used for two purposes: peace and war. In times of war they served as military shelter and defence. In times of peace, it was used as a food store. It is also noted that it functioned for some years as a prison.