Apartments42 images Keep8 images A wall built by the normans separated the castle ground into wards or courts. Main gate. Main gate. Main gate. Roman wall, 55-400 CE. The outer walls of the castle were used as bomb shelters during World War II. The 8 shelters could accommodate hundreds of people. The outer walls of the castle were used as bomb shelters during World War II. The 8 shelters could accommodate hundreds of people. The outer walls of the castle were used as bomb shelters during World War II. The 8 shelters could accommodate hundreds of people. The outer walls of the castle were used as bomb shelters during World War II. The 8 shelters could accommodate hundreds of people. Labels