Located in Fener, on the shores of the Golden Horn, the Ecumenical Patriarchate of Constantinople serves as the spiritual center of the Eastern Orthodox Church. Since the 15th century, it has been the seat of the Ecumenical Patriarch, considered the "first among equals" among Orthodox Christian leaders worldwide. The complex is home to the Greek Orthodox Patriarchal Church of St. George (Aya Yorgi Church), a modest yet historically significant church that continues to attract pilgrims and visitors. Inside the church, visitors can admire ornate iconostasis, relics of saints, and a throne believed to date back to the Byzantine era. Among its treasures is the relics of St. John Chrysostom and St. Gregory the Theologian, brought here from the Vatican in 2004. Despite its unassuming exterior, the church and patriarchate represent centuries of religious tradition, making it a must-visit destination for those interested in Orthodox Christianity, Byzantine history, and Istanbul’s multicultural heritage.