BURSA, TURKIYE - NOVEMBER 28: Pope Leo XIV attends a ceremony marking the 1700th anniversary of the First Council of Nicaea held in the ruins of submerged basilica, revealed in 2014 after water levels receded in Lake Iznik and identified as having been built in honor of Saint Neophytos in Bursa, Turkiye on November 28, 2025. ( Saliha Nur Köksal - Anadolu Agency )

BURSA, TURKIYE - NOVEMBER 28: Pope Leo XIV attends a ceremony marking the 1700th anniversary of the First Council of Nicaea held in the ruins of submerged basilica, revealed in 2014 after water levels receded in Lake Iznik and identified as having been built in honor of Saint Neophytos in Bursa, Turkiye on November 28, 2025. ( Saliha Nur Köksal - Anadolu Agency )

BURSA, TURKIYE - NOVEMBER 28: Pope Leo XIV attends a ceremony marking the 1700th anniversary of the First Council of Nicaea held in the ruins of submerged basilica, revealed in 2014 after water levels receded in Lake Iznik and identified as having been built in honor of Saint Neophytos in Bursa, Turkiye on November 28, 2025. ( Saliha Nur Köksal - Anadolu Agency )

BURSA, TURKIYE - NOVEMBER 28: Pope Leo XIV attends a ceremony marking the 1700th anniversary of the First Council of Nicaea held in the ruins of submerged basilica, revealed in 2014 after water levels receded in Lake Iznik and identified as having been built in honor of Saint Neophytos in Bursa, Turkiye on November 28, 2025. ( Saliha Nur Köksal - Anadolu Agency )

BURSA, TURKIYE - NOVEMBER 28: Pope Leo XIV attends a ceremony marking the 1700th anniversary of the First Council of Nicaea held in the ruins of submerged basilica, revealed in 2014 after water levels receded in Lake Iznik and identified as having been built in honor of Saint Neophytos in Bursa, Turkiye on November 28, 2025. ( Saliha Nur Köksal - Anadolu Agency )

BURSA, TURKIYE - NOVEMBER 28: Pope Leo XIV attends a ceremony marking the 1700th anniversary of the First Council of Nicaea held in the ruins of submerged basilica, revealed in 2014 after water levels receded in Lake Iznik and identified as having been built in honor of Saint Neophytos in Bursa, Turkiye on November 28, 2025. ( Saliha Nur Köksal - Anadolu Agency )

BURSA, TURKIYE - NOVEMBER 28: Pope Leo XIV attends a ceremony marking the 1700th anniversary of the First Council of Nicaea held in the ruins of submerged basilica, revealed in 2014 after water levels receded in Lake Iznik and identified as having been built in honor of Saint Neophytos in Bursa, Turkiye on November 28, 2025. ( Saliha Nur Köksal - Anadolu Agency )

BURSA, TURKIYE - NOVEMBER 28: Pope Leo XIV attends a ceremony marking the 1700th anniversary of the First Council of Nicaea held in the ruins of submerged basilica, revealed in 2014 after water levels receded in Lake Iznik and identified as having been built in honor of Saint Neophytos in Bursa, Turkiye on November 28, 2025. Fener Greek Patriarch Bartholomeos also attended the event. ( Fatih Çapkın - Anadolu Agency )

BURSA, TURKIYE - NOVEMBER 28: Pope Leo XIV attends a ceremony marking the 1700th anniversary of the First Council of Nicaea held in the ruins of submerged basilica, revealed in 2014 after water levels receded in Lake Iznik and identified as having been built in honor of Saint Neophytos in Bursa, Turkiye on November 28, 2025. Fener Greek Patriarch Bartholomeos also attended the event. ( Fatih Çapkın - Anadolu Agency )

BURSA, TURKIYE - NOVEMBER 28: Pope Leo XIV attends a ceremony marking the 1700th anniversary of the First Council of Nicaea held in the ruins of submerged basilica, revealed in 2014 after water levels receded in Lake Iznik and identified as having been built in honor of Saint Neophytos in Bursa, Turkiye on November 28, 2025. Fener Greek Patriarch Bartholomeos also attended the event. ( Fatih Çapkın - Anadolu Agency )

BURSA, TURKIYE - NOVEMBER 28: Pope Leo XIV attends a ceremony marking the 1700th anniversary of the First Council of Nicaea held in the ruins of submerged basilica, revealed in 2014 after water levels receded in Lake Iznik and identified as having been built in honor of Saint Neophytos in Bursa, Turkiye on November 28, 2025. Fener Greek Patriarch Bartholomeos also attended the event. ( Fatih Çapkın - Anadolu Agency )