This graphic uses data taken from latest official censuses and projections to rank the largest cities by population.
China has dominated global steel production the past few decades, but how did the country get here, and is its production growth over?
How will Europe's population grow by 2100? Most cities in the EU are expected to see surges in population growth, while a few might shrink.
Where were the largest cities in the world throughout history? This video details the rise (and fall) of the largest cities by population from 3,000 BCE.
These maps show the population density of several countries, using 3D spikes to denote where more people live.
This map juxtaposes nations and Indian states to provide a new perspective on the world's soon-to-be most populous country
What does population density look like on a global scale? These detailed 3D renders illustrate our biggest urban areas and highlight population trends.