The Ani Cathedral is the biggest building in Ani, which was the capital of medieval Armenia during the Bagratid era. It's located in eastern Turkey, near the border with Armenia. The building was completed at the beginning of the 11th century, according to the plan of the architect Trdat, and for almost half a century, it served as the residence of the Catholicos, the head of the Armenian Apostolic Church. The cathedral is considered to be the largest and most impressive building in the city....