Keskin Sulu Cave
Keskin Sulu Cave is located in the center of Anatolia, in the Arzu Bayiri region of Kirikkale. Scientific research has demonstrated that the cave is horizontally developed, semi-natural, semi-artificial, and a sinkhole-type fossil cave. Also, it has been considered that it was a mine gallery in ancient times and was a settlement during the Byzantine period. It was opened for visits in 2013.