The Temple of Athena Nike - part of the Acropolis in the city of Athens. The Greeks built the Temple of Apollo at Didyma, Turkey (about 300 BC). The design of the temple was known as dipteral, a term that refers to the two sets of columns surrounding the interior section. These columns surrounded a small chamber that housed the statue of Apollo. With Ionic columns reaching 19.5 m (64 ft) high, these ruins suggest the former grandeur of the ancient temple.