I stood on the remains of the walls of one of the houses while I took this photo. Ancient ships likely traveled the waters of Lake Sinoe, and turned the left corner to reach the port of Histria. 

Photo taken among the ruins of Histria, the oldest documented city on Romanian territory. Histria is located on the shore of Lake Sinoe, a salt-water lake with a direct link to the Black Sea, near Constanta, in the region of Dobrogea.