Roughly 2.1 billion people live in "built-up" urban or "urbanized" areas of more than 500,000, according to the latest edition of Demographia's "World Urban Areas." Can you name the top 20 most-populous cities?
By JAKE ELLISON, SEATTLEPI.COM STAFF, Seattle Post-Intelligencer
Tue, 10/11/2016 - 7:04pm
Roughly 2.1 billion people live in "built-up" urban or "urbanized" areas of more than 500,000, according to the latest edition of Demographia's "World Urban Areas." Can you name the top 20 most-populous cities?