Athyra
Turkey
Athyras (Ἀ) was a Greek city in ancient Thrace, located in the region of the Propontis. Its site has been located near the modern Turkish city of Büyükçekmece. Under the name Athyra, it is a titular see of both the Eastern Orthodox Church and Roman Catholic Church.
Archaeological site data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).