There are two entrances to the Colosseum, but there is only one queue-free access using Roma pass. Mount Palatini is now in ruins. There used to be prehistoric human remains, residential ruins of the Roman Republic and palace ruins of the Roman Empire. Finding, exploring and fantasizing in the ruins is also a pleasure. If you are interested, it is suggested to stay here for half a day and walk roughly for one and a half to two hours. There is a platform on the hill to enjoy the ancient Roman Square.