The world has a new most populous city.

Indonesia’s capital, Jakarta, tops a ranking that is increasingly dominated by Asia. It edged out Bangladesh’s capital, Dhaka, and Japan's Tokyo to earn the title in a new United Nations report.

With an estimated population of nearly 42 million residents, Jakarta soared from 33rd place in the previous rankings, in 2018, that were topped by Tokyo.

It's followed by Dhaka, with 36 million, which the report says is "expected to become the world’s largest city by mid-century."

That's a sign of the rapid change underway across the world, with the rise of densely populated megacities.

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Nearly half of the planet’s 8.2 billion people now live in cities, according to the "World Urbanization Prospects

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