detail of the facade with arches of the colosseum amphitheatrum flavium with trees in front

detail facade arches colosseum amphitheatrum flavium trees front amphitheater amphitheatre ancient antique arch archeology architecture arena blue building city coliseum column culture day empire europe european exterior famous forum gladiator heritage historic historical history italian italy landmark monument old outdoor roma roman rome ruin sky stadium stone summer theater tourism tourist travel vacation view seen colle oppio cloudy