By 2025 10.3 percent of the world 's urban population will live in megacities says the UN . Here we highlight some of the world 's megacities , such as the most populous : The most populous megacity is Tokyo in Japan , with 35.2 million inhabitants . Comment:
By 2025 10.3 percent of the world 's urban population will live in megacities says the UN . The most populous megacity is Tokyo in Japan , with 35.2 million inhabitants . Comment: