Sultan Han Caravanserai is located in the Sultan Hani District of Bünyan District, located on the 46th km of Kayseri-Sivas road. The neighbourhood got its name from this work. It was built between 1232-1236 during the reign of Seljuk Sultan Alaeddin Keykubat I. It is one of the best examples of the Seljuk architect style. Very smooth cut stone was used on the body walls. The joints are very uniform and show a structure called "not to flow". The arch built with the alternating use of beige and brownstone attracts attention at the crown gate of the courtyard. Depending on the stone material, decorations with relief and carving techniques can be seen in the crown doors, two corner towers and Köşk Mescit.
https://www.kayseri.bel.tr/kesfet-listeleme/sultan-hani-kervansarayi