Shanghai, China skyline at dusk. 
Panoramic of the world’s largest city (24 million+) shot with my old Nexus5 phone. This was the view from my hotel room in Shanghai back in 2014. I’m sure the skyline has changed since then!
This was just looking one direction of course. Multiply this scene a few times to get some idea of the immensity of this megalopolis.
I think it would be cool if there was a way to shoot the same or similar scene, but with a drone and of course not through the sub-optimal glass filter of a hotel room window.