Kaleiçi is the historic city center of Antalya, Turkey. Until modern times, almost the entire city was confined within its walls. It has structures dating from the Roman, Byzantine, Seljuk, Ottoman and modern Turkish republican eras. The Kaleiçi area is located in the centre-eastern portion of the city along the mediterranean coast fronted by the yacht harbour that dates to the Roman era.
The name Kaleiçi means “Inside the Kale” or “Inner Kale” (Kale itself means castle or fortress).
Hıdırlık Tower (Turkish: Hıdırlık Kulesi) is a landmark tower of tawny stone in Antalya, Turkey, where Kaleiçi meets Karaalioglu Park. It is believed that the ruling Roman Empire built this in the second century CE on a square plan. The same century, it was turned into circular tower.
The tower is situated at the southern side of the place, where the land walls of the city join the sea walls. The 14 metres (46 ft) high structure consists a circular tower rising on a quadratic pedestal. The tower’s gate at the eastern side leads to a small room, from where a narrow staircase goes up. There are signs of restoration work on the upper part done in the Seljuk and Ottoman eras.