Heliopolis (Roman Phoenicia)
In the third century Heliopolis had a population of nearly 20000 inhabitants and there was an hippodrome with even a theater, just outside the "Great Court" area of the temples. Additionally a temple of Mercury stood on top of the hill outside the ramparts. A long staircase led up to it from the town, as is shown on coins of Heliopolis struck under emperor Philip the Arab. Remains of the temple, the line of the staircase, and parts of its parapet have been found. Still remain some sections of the Roman walls, with square forts around the old city