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Europe
The wider region is now believed to be home to more than 20 million people.
↗ https://www.express.co.uk/news/world/2085049/europes-largest-mega-city-populationThe wider region is now believed to be home to more than 20 million people.
↗ https://www.express.co.uk/news/world/2085049/europes-largest-mega-city-population