That faint skyscraper in the distance is the tallest building in all of Africa.
Greater Cairo is one of the biggest cities in the world, with a population of over 22 million (a fifth of the whole country of Egypt). As the population grows, it keeps expanding outwards into the desert.
Egypt recently built a satellite city a bit further out, which is currently called the New Administrative Capital. It’s only mildly occupied at the moment because it is still in heavy development, but the plan when complete is that this satellite city will be the new capital of Egypt rather than Cairo itself. And that skyscraper at the heart of it recently became the current tallest building on the continent. 
