Africa is the world's second largest and second most populous continent (30.2 million sq kilometers or 11.7 million sq miles), ranking second to Asia (44.4 million kilometers or 17.1 million sq miles) and larger than North America (24.2 sq kilometers or 9.4 sq miles). Accompanying its enormous size, Africa is home to the world's largest desert, the Sahara, as well as the Namib and the Kalahari. Each is incredibly diverse and vast covering a majority of Africa. With their alluring beauty, yet sometimes harsh environments, these regions of the continent offer a fascinating environmental and cultural history dating back millions of years.
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