Singapore its one of the smallest country i ever been. Its also one of most cleanest city with no crime at all. I spend there 2 days and i dont see any police car, police man or even some crime/fight. The penalty for crime here are insane high, so peoples here have big respect from punishments.
This place its filed with amazing modern architecture mix with old one. On the street you see very old two or three stores houses and above them are few hundreds meters high skyscrapers.