stone fort on a small island in the Mediterranean Sea

stone fort on a small island in the Mediterranean Sea. The fort is surrounded by water and has a lighthouse on top. The Greek flag is flying on a flagpole at the top of the fort. The sky is blue and there are no clouds visible. The image was taken at the location of the Mandraki Harbor in Rodos, Greece. The coordinates provided, latitude: 36.453, longitude: 28.225, match the location of the Mandraki Harbor.