https://www.alojapan.com/1276000/the-worlds-biggest-mega-city-in-2025-thats-4-times-bigger-than-london-world-news/ The world’s biggest mega-city in 2025 that’s 4 times bigger than London | World | News #cities #Japan #JapanPopulation #LivingInTokyo #news #TheBiggestMegaCityInTheWorld #Tokyo #TokyoNews #TokyoPopulation #tourism #WhatToDoInTokyo #What'sLifeLikeInTokyo #World'sBiggestCities #WorldsBiggestCity #東京 #東京都 Mega-cities are popping up all around the world as Earth’s population increases. It currently stands at just over 8 billion, and i…