10 Most Populated Cities In The World – I Hadn’t Even Heard Of #4!

Thought your city was crowded? Think again. This cool video shows the world’s highest populated cities.

Here’s the video:

The global population through history is:

35,000 BC – 3 MILLION
10,000 BC – 15 MILLION
1340 AD – 350 MILLION
1804 – 1 BILLION
1927 – 2 BILLION
1999 – 6 BILLION
2015 – 7.3 BILLION