Ancient Rome has two focal points: the Colosseum to the east, and the Campidoglio (Capitoline Hill) to the west. In between lie the forums: the more famous Roman Forum on the left of Via dei Fori Imperiali as you walk up from the Colosseum, and the Imperial Forums on the right. Rising above the Roman Forum, is the Palatino, and behind that the Circo Massimo. Continuing northwest from the Circo Massimo brings you to the Forum Boarium, ancient Rome’s cattle market and river port, where you’ll find the Bocca della Verità, Rome’s mythical lie detector. However, the ancient city’s most complete landmark, the Pantheon, is to be found in the Centro Storico, and the Vatican is home to Hadrian’s ancient mausoleum, adapted to become the Papal fortress of Castel Sant’Angelo.