The world's largest desert, the Antarctic Desert, is located on Antarctica.
A desert is defined by very low precipitation, not by heat or sand. Antarctica receives little snowfall across its vast interior, so it qualifies as a polar desert even though it is covered by ice. The Antarctic Desert covers the continent and surrounding ice-covered regions, making it larger than the Sahara.
The Sahara is the world's largest hot desert, while the Arctic is also classified as a polar desert. Antarctica's interior is exceptionally dry because cold air holds little water vapour and the continent's high ice plateau limits moisture reaching the centre.
Antarctica is Earth's coldest, driest, and windiest continent. Nearly all of its surface is covered by an ice sheet, which contains an enormous share of the planet's fresh water. The continent has no permanent native human population, though many countries operate scientific research stations there.