NYC, Tokyo, Delhi: These maps chart the growth in area and population of 20 megacities

Today there are more than 30 cities with a population over 10 million. Fortune charts how the most populous urbanized areas have changed since 1990.

What is/makes a mega city? Is New York a megacity? - Quora

Ranked: The 20 Most Populous Cities in the World

Focusing on World Megacities: Demographia World Urban Areas, 2021

global cities – CityGeographics

Between Mexico City and Tokyo, which city is the biggest in the world in terms of population? Which one of these two cities will be bigger in the proper and greater metro

Chart: The World's Next Megacities

Breakdown of Megacities [OC] : r/MapPorn

Megacities – Digital for Good

International Collaborative Research: “Smart Global Mega Cities” and Conclusions of Cities Case Studies Tokyo, New York, Mumbai, Hong Kong-Shenzhen, and Kolkata

Megacities and climate change – A brief overview - ScienceDirect

Strength and weaknesses: A comparison of Beijing with four Bemajor metropolises

Temporal consistency between gross primary production and solar-induced chlorophyll fluorescence in the ten most populous megacity areas over years

GAPS-megacities: A new global platform for investigating persistent organic pollutants and chemicals of emerging concern in urban air - ScienceDirect