We’re going to start our walk from the honorary arch dedicated by the Roman Senate to emperor Constantine in 312 AD, immediately after his victory against Maxentius in the battle of the Milvian bridge, and was finished in 315 in occasion of the ten years anniversary of emperor’s reign. Flanking the slopes of the Palatine hill we’re going to reach the Circus Maximum, the largest building in ancient Rome for chariot races. It was built in wood in the IV century BC and then it was rebuilt in masonry in the II century BC; it was one of the most beautiful and majestic public buildings in town, and it could host up to 300.000 spectators. During the Middle ages it was slowly plundered of its marbles and it was covered by debris. Here various mills were built and the Moletta tower is part of one of them, which worked until the beginning of last century, as it is proved by the presence of the former pasta factory Pantanella. Below this building one of underground Rome’s treasures is hiding: an ancient sanctuary dedicated to god Mithra.
