Built in 495 BC to commemorate the victory of the Battle of Lake Regillus, The Temple of Castor and Pollux originally served as the meeting place for the Roman Senate. The temple was dedicated to the Dioscuri, who according to the legend appeared in the battlefield in support of the Republic. Today, only fragments of the temple remain, most apparent of all being the three columns. The Temple of Caesar was erected in 29 BC and dedicated to Julius Caesar posthumously as Caesar was the first resident of Rome to be deified and so honored with a temple.