Konya citadel

The Konya citadel refers to the defensive walls surrounding the center of the city of Konya in Turkey, encircling the area now called "Alaaddin Hill". The walls were built in the early 1220s by Kayqubad I of the Sultanate of Rum.

Structure

The Konya citadel protected the administrative, residential, and ceremonial center of the city, including the older Alaeddin Mosque and the Seljuk palace of Konya which was fused with part of the wall of the citadel.
A weaker citadel called the Zindankale functioned as outer protective belt for the city itself.

Decoration

The citadel incorporated many western decorative elements, such as a statue of Hercules, a frieze from a Roman sarcophagus, courtly scenes with seated figures in toga, winged deities around the figure of the sun, mixed with inscriptions in Arabic. It would seem that such symbolism mixing Western and Eastern elements was mostly derived from the influence of the Artuqids, who were adept at combining Classical and Perso-Islamic approaches.
The walls no longer exist. Almost nothing remains to this day, apart from a few sculpture pieces found in museums, such as the Ince Minare Museum in Konya.