A quay is a pier alongside a body of water that is used to moor boats. Spelled “quai” in French, they often serve as a promenade like this vine-covered stone wall along the Ill River. Quays surround the Grande Ȋle which is an elliptical shaped island in Strasbourg, France. The entire Grand Island is a UNESCO World Heritage Site because the streets and buildings still reflect Strasbourg’s medieval history.