Southern gate of the late period and the city walls of the late period and the Hellenistic period:
City walls on both sides and the gate of it date back to the 4th century AD. There are also walls in the other districts of the city which date back to an earlier time, 3rd century BC.
Hellenistic period walls on the eastern side are fairly undamaged and Hellenistic period walls and their towers were made of cut stones. On the upper floors of the towers there are windows.
Southern gate of the Hellenistic period and additions belonging the Roman period:
The southern gate is of the Helen - Roman period is a perfect example of the stone carving art. It is comprised of a courtyard with a horseshoe shaped plan, which is protected by two cylindrical high towers on both sides and an monumental gate appended to the courtyard in the direction towards the city.
In the Roman period monumental gate with three arches and the courtyard were added.
The 10 m. high towers belong to the Hellenistic period.
The area between the old gate and the late gate is also called Septimus Severus Forum. Courtyard part is embellished with two rows of niches which has round arches.
There were statues inside of these niches and columns were places between niches.
The bases with inscriptions of some of these statues, belong to the persons titled city’s founders, were found. Among these are the bases of statues belonging to the legendary Kalkhas and Mophos also to the father Plancius Varus and his son.