Inuit abodes are traditionally constructed from blocks of snow and ice, and are known as igloos. Igloos are the traditional dwellings of the Inuit people, who inhabit the Arctic regions of Canada, Greenland, Alaska, and Russia. They are built to provide shelter from the extreme cold and windy conditions of the Arctic. The walls of an igloo are usually made of blocks of snow and ice, and the roof is made of a dome-shaped structure of snow and ice. The interior of an igloo is insulated with animal skins and furs, and the entrance is usually covered with a flap of fur or hide.