Can you name a few of them in Nigeria? On satellite imaging, from what I've seen, they're not so massive, and they're mostly comprised of a sprawl of 1-3 story buildings.
We can compare vs. cities that we have good numbers for. Or Chinese/Indian cities, for that matter. (After looking at Nigeria or the DRC, a quick glance at India via satellite imaging is shocking.)
That said, Egypt is very populous, there's no doubt about that one.
I drove through at least 10 cities in Nigeria I’ve never heard of that had tons of buildings over 10 stories. I just took the fastest route across, I didn’t go wandering. This was 10 years ago too.
Also remember the DRC is almost a million square miles. So it’s 1.5x Alaska.
Sigh.
Personal experience Vs. looking at pictures from the basement....
I expect it to be USA policy soon.
One is anecdotal, one is data.
Is it weird that I can't tell which one? Guangdong has 127 million people and its just the size of Oklahoma. Ok, the Chinese government could be lying about that, but I seriously doubt it.