Ruins of Ani, in eastern Anatolia. Ani is a ruined and uninhabited medieval city-site situated in the Turkish province of Kars, beside the border with Armenia. It was once the capital of a medieval Armenian kingdom that covered much of present day Armenia and eastern Turkey. At its height, Ani had a population of 100,000 - 200,000 people and was the rival of Constantinople, Baghdad and Cairo. The Church of the Redeemer (Christ).