The Sahara Desert is the world's  desert.

The Sahara Desert is the largest hot desert in the world, covering an area of approximately 3.6 million square miles. It is located in North Africa and spans across several countries, including Algeria, Chad, Egypt, Libya, Mali, Mauritania, Niger, Sudan, and Tunisia. The Sahara Desert is known for its extreme temperatures, arid conditions, and vast sand dunes. It is also home to a variety of plant and animal species adapted to survive in such harsh environments.