Having gathered settlers from all over Arkadia, Megalopolis offered temples to many gods such as Zeus, Asclepius, the Mother of the Gods and more. Its ruins include the Stoa of Philippos, Sanctuary of Zeus Soter, Stoa of Myropolis and a Bouleterion. There was also an ancient theatre which seats for than 20,000 people and considered the largest in Greece. Its good acoustics have made it a place for drama revivals in recent times.