This Hellenistic religious center, about 77 kilometers south of Kusadasi, was home to the fabled Oracle of Didyma and the ancient world's second-largest temple.
The Temple of Apollo still boasts its towering columns (which once numbered 122) and is one of the best-preserved examples of Greek temples in Turkey.
The Oracle of Didyma was considered of high importance in the classical ancient world, only second in authority to the Oracle of Delphi. It was only under the rule of Constantine the Great and his conversion to Christianity that the Oracle's influenced waned.
