The Decapolis was a league of 10 (deca) cities that agreed to work together for political and economic advantage. The ruins here are well preserved.
Pro Tip: There isn't great signage to offer interpretation so a guide is highly recommended.

One of the city gates.
The ruins of an old Christian church.
Market stalls outside the amphitheater.
The hippodrome...where horse races were held.
An ancient wine press.
The stone tells the story of the expansion of the city.
The Temple of Zeus
The central plaza.
Then amphitheater. Musicians were playing bagpipes.