It also has some extremely large cities, it is difficult to believe that this all began with a civilization, albeit very advanced but isolated, in a small patch of life derived from the Nile and (since most likely this has been permanently nailed into your mind) the Nile River, the longest river in Africa and the second longest river in the world, just 87 miles behind the Amazon, which is 4,345 miles long (I can't believe I forgot to mention this until now) but yes, the Nile is 4,258 miles long, which is 1,338 miles longer than Africa's second longest river, the Congo, which is 2,920 miles