architecture, area, arena, armour, army, attack, auxilia, background, basilica di san pietro, boat, bridge, bridge sant'angelo, buildings, cathedral, clouds, coliseum, colosseum, dawn, dome, fragment, gladiator, grass, hats, helmet, horse, house, iii-i centuries . bc., italy, leaves, lighting, lights, locks, men, night, panorama, pattern, people, picture, ponte sant'angelo, ponte sant’angelo, reflection, rendering, republican, river, roman, rome, round shields, shield, sky, spear, st angelo bridge, st. angelo bridge, st. peter's basilica, subsidiary, sword, swords, the sky, tiber, tower, town, troopers, troops, vatican, vatican city, water, william marlow, «auxilia»