Highest population urban agglomeration

Highest population urban agglomeration
Who
Tokyo
What
38,140,000 people
Where
Japan (Tokyo)
When
2016

With a population of 38,140,000, Tokyo is the world's most populous urban agglomeration. The Japanese capital has so many people that even if you combine the populations of London (10,434,000) and New York-Newark (18,604,000), Tokyo would still have 9,102,000 more residents.