The western side of the fortification wall with the smooth, sloping accessway is carefully constructed. There stands the main gate of the city. The gate is flanked by a rectangular tower on the west and a curtain wall on the east. Today only the lower stones of the door jambs survive. A 3.5-metre-wide road of broad, irregularly placed slabs leads north up to the gate; it is contemporary with the fortifications (4th century BC). Cart ruts can be seen near the gate, while the road widens within it.

The tower on the west side of the gate is founded on the bedrock and was originally a tall structure, although only the lower part survives today. It was probably a B-type tower, with two floors and a gable roof, supplied with arrow slits and openings for war machines. During the Roman Imperial period, funerary monuments of wealthy families were cut into the bedrock near the gate. Although they are poorly preserved, the finds (a marble inscription and fragments of painted plaster) indicate that these were imposing monuments.