Perga

the capital of Pamphylia, on the coast of Asia Minor. Paul and his companions landed at this place from Cyprus on their first missionary journey (Acts 13:13; 13:14), and here Mark forsook the party and returned to Jerusalem. Some time afterwards Paul and Barnabas again visited this city and "preached the word" (Acts 14:25). It stood on the banks of the river Cestrus, some 7 miles from its mouth, and was a place of some commercial importance. It is now a ruin, called Eski Kalessi.

EBD - Easton's Bible Dictionary