🤯🇨🇳In China, there is a building that looks like it's taken out of a science fiction movie. It's called Regent International and it's located in Hangzhou. It's not just any skyscraper: it's home to more than 30,000 people, making it a truly vertical city. Within its walls you can find everything: supermarkets, shops, hairdressers, restaurants and pharmacies, creating an autonomous urban ecosystem where its inhabitants practically do not need to leave. Its colossal size and population density have made it a symbol of the urbanization of the future, but also a reminder of the challenge posed by overpopulation in the world’s major cities. 🌆🏙️