Cathedral of Ani

Abandoned 11th century cathedral

The Cathedral of Ani is the largest standing building in Ani, the capital city of medieval Bagratid Armenia, located in present-day eastern Turkey, on the border with modern Armenia. Its construction was completed in the early 11th century by the architect Trdat and it was the seat of the Catholicos, the head of the Armenian Apostolic Church, for nearly half a century.

This keyword could refer to multiple things. Here are some suggestions: