The primary difference between the Arctic and the Antarctic is a geological one. The Arctic is a sea of ice surrounded by land and located at the highest latitudes of the northern hemisphere. A region with vaguely defined limits, it extends over six countries that border the Arctic Ocean: Canada, the USA (Alaska), Denmark (Greenland), Russia, Norway and Iceland.
Antarctica, by contrast, is an entire continent to itself located in the southern hemisphere and 98 percent covered by an ice cap. There are mountains reaching a maximum of just over 16,000 feet in height to be found there. Though it is home to dozens of scientific bases, Antarctica does not belong to any country.