Mexico City, Where Else?
Often referred to as the City of Millions, Mexico City is one of the most populated cities in the entire world. You might have traveled to Mexico before and felt otherwise, and if you were to walk the streets you may not be able to get a feel for just how busy this city is, but the aerials view of it sure demonstrates it greatly.

This image demonstrates the wonders of these drones. The image shows house after house as far as the eyes can see! There is literally no end in site in this image. Just thinking about how many humans are in this one area, it is clearly one of the densest populations in the world!