What kinds of games do children play which use imagination?

I'd say children often use their imagination most in role-playing games, like pretending to be doctors or teachers. That's because these games let them recreate real-life situations in a safe, creative way. For example, I sometimes see kids in Shanghai parks playing "restaurant" - they'll use sticks as chopsticks and leaves as money, which is quite clever actually. Of course, digital games are popular too these days, but I think the physical, social aspect of these pretend games helps develop communication skills better.