Standing on the castle hill, the most noticeable part of the old city is the semi-circular ancient Roman theatre built on the hill. Everywhere the Romans go, they have to leave such a theatre. Cats and cats have no idea how many times they have come to such an ancient Roman theatre during their travels along the Middle East and the Mediterranean Sea. The well-preserved (possibly renovated) open-air theater was built in the 2nd century A.D. and the whole building lay on the hill. Its design style is very similar to Gerash's ancient Roman theatre. It is said that it can accommodate 6,000 people. Its seats are graded. The seats closest to the stage are exclusive princes and nobles, as well as military generals, and the common people are sitting in the highest seats in the rear. Fortunately, in the seats with increasing height, even if the audience in the back row still has the best view, and like other Roman theatres, the sound effect here is excellent. No matter where sitting in the theatre, the sound on the stage can be clearly heard. The fence next to the front seat has echo effect. When standing in the middle of the theatre, you can hear your voice echoing overhead.