Mapped: The World’s Wealthiest Cities, by Millionaires and Billionaires

In this graphic, we show the wealthiest cities in the world based on the number of millionaires and billionaires in each metropolitan area. Read more

Visualizing the Cost of Hosting the Olympics

The cost of hosting the Olympics has varied massively in recent years. Read more

Olympics 2021: Comparing Every Sports Ball

Here are the different sizes and weights of each Olympic sports ball used in the Tokyo Olympics. Read more

Olympic Medal Count: How Did Each Country Fare at Tokyo 2020

After 17 days and 339 events, the Tokyo Olympics have come to an end. Here we visualize the final medal tallies for every participating country. Read more

Ranked: The World’s Largest Cities By Population

This graphic uses data taken from latest official censuses and projections to rank the largest cities by population. Read more

Ranked: The Cities With the Most Bubble Risk in Their Property Markets

Despite higher mortgages and sharply correcting prices, some cities’ property markets are still in bubble-risk territory. Read more

Ranked: Cities With the Most Millionaires in the World

Major financial centers—London, Singapore, and Hong Kong—feature in these rankings of cities with the most millionaires. Read more

Vintage Viz: World Cities With 1 Million Residents (1800–1930)

From someone born in the 19th century, in the midst of historic population growth, comes this vintage visualization showing world cities growing ever bigger. Read more