ancient rome landmark with majestic well preserved porta san paolo gate one of the southern gates of the aurelian walls that

ancient rome stronghold secrect italy gate fortress discovery archaeology digging porta paolo actraction architecture vault door fortified building castle tower street design city walls majestic fort roman europe exolore facade historic history landmark landscape monument old outdoors road ruin tourist wall travel medieval historical tourism town preserved one southern gates aurelian protected located piazzale ostiense main entrance downtown