The Coolest Children's Rooms

How cool is this kid's room above with hanging swings to play.

Children's Rooms where kids can grow in are the best and coolest rooms.  I think this can be done by treating the room as a place where children would play, study and spend time with friends instead of just a space where they would go only to sleep.  Maybe putting light and functional furniture and adding build-ins with space for homework area is also a good way to make a kid's room where they would eventually grow and do their homework.