Iznik, les mystères de la basilique engloutie

2014, Turkey. A normal survey flight over Lake Iznik unexpectedly reveals the sunken remains of a 4 century basilica. The discovery prompts scientists to probe the elusive history and geology behind the demise of the church that was built in the ancient Roman city of Nicaea – now known as Iznik. 　　When was the basilica destroyed? How did the basilica get swallowed up by Lake Izni...