As was the Antalya of Hellenistic, Roman, Byzantine, Anatolian Seljuk and Ottoman periods,  the historical core of modern day Antalya is found in @Kaleiçi.@ Remains of the rich inheritance of those civilizations can still be found in Kaleiçi's old harbor, which used to be one of the most important naval bases in those times. The town of Antalya found the ancient castle walls to be too confining and over time, a new town pushed out onto the rocky sea cliffs. Today, Antalya is the center of Turkey's 11th largest