The Αncient Theatre was originally constructed by the inhabitants of the ancient city of Klima, possibly during the Hellenistic Age (3rd century BC). However, after the destruction of the city by the Athenians in Roman times, above the preserved foundations of the classic theater, a bigger one was built made of snow-white Parian marble and remarkable bas-reliefs, which it is estimated that it had a seating capacity of 7000 spectators.