Exactly … you read that right – the cleanest city in the world. Until recently, chewing gum was banned. When entering the country, it could well happen that it would be confiscated. By the way, there is no shop in all of Singapore where you can buy chewing gum. Spitting and not flushing after the toilet are also treated as criminal offenses. Now it should be clear why this metropolis is actually one of the cleanest in the world.