Καθεδρικός Ναός Αγίας Τριάδος

The Holy Trinity Cathedral also called Greek-Catholic Cathedral of Athens is a Greek Byzantine Catholic cathedral in Athens, Greece. It functions as the seat of the Greek Catholic Apostolic Exarchate of Greece (Exarchatus Apostolicus Graeciae) that was created on June 11, 1932, by the then Pope, Pius XI, and follows the Byzantine Rite. It was most recently under the pastoral responsibility of Bishop Manuel Nin.

Cathedral data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).