TAGS: desert, deserts, the largest deserts in the world, top ten largest deserts in the world, main deserts in the world, the world's largest deserts, oasis, what is an oasis, the largest desert in the world, the biggest deserts in the world, the deserts of the world, what a desert is, droughts, what droughts are, what is the biggest desert in the world, the most extensive deserts in the world, the Sahara desert, the Sahara Desert description, Sahara for tourists, best tourism in Sahara, the Sahara Desert history, the greatest desert on the African Continent, the greatest desert in the world, the largest desert on the Earth,