The Sahara Desert is the largest desert in Africa, covering an area of approximately 3.5 million square miles. It stretches across the entire continent, from the Red Sea in the east to the Atlantic Ocean in the west. The Sahara is a vast expanse of sand
From Wikipedia
The Sahara is a desert spanning North Africa. With an area of 9,200,000 square kilometres (3,600,000 sq mi), it is the largest hot desert in the world and the third-largest desert overall, smaller only than the deserts of Antarctica and the northern Arctic.