This graphic uses data taken from latest official censuses and projections to rank the largest cities by population.
Which U.S. state has the best internet value? Browse this interactive map to see where states rank on the Internet Value Index.
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.
Which countries have the largest populations, or the highest GDP? This animation compares countries based on 20 different metrics.
Fire safety is a critical feature of high-rise buildings, which are increasing in number every year as the world's urban population grows.
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