Greenland is the largest island in the world, with an area of 2,166,086 square kilometers (836,330 square miles). It is located between the Arctic and Atlantic oceans, and is politically a part of Denmark.
Ellesmere Island is the third largest island in the Canadian Arctic Archipelago, and the tenth largest island in the world. It has an area of 196,236 square kilometers (75,767 square miles). Ellesmere Island is located in the northernmost part of Canada, and is part of the Qikiqtaaluk Region of Nunavut.