How big would a city have to be to contain all 7.4 billion of us? That depends on population density, so RealLifeLore took a look at the places where we’ve really packed them in — from Singapore to the famed Kowloon Walled City — to discover the answer. Trust us, you’ll start feeling claustrophobic by the end of the video.
Video by: presurfer.blogspot.com
Video by: presurfer.blogspot.com