The Roman forum also held this temple to Romulus, and it’s original 6th century BC hydraulic door which is still functional.
Also shown below is the largest basilica in the world, which at one point housed the Roman equivalent of the Supreme Court. (St. Peters basilica was patterned after this.)
Finally the arch of Titus was where we exited the forum. It was erected after the sack of Jerusalem and destruction of the temple, and depicts these events.