It's worth going to the rooftop. All the people are waiting in line for the elevator. When you are in line, you just go up the stairs and arrive, but the real wind blows coolly, so it's refreshing. ㅋㅋㅋ It's a pity that the exhibition hall in the middle is prohibited from taking pictures, but the chronicle is very well explained. But there are so many people that it's hard to see them carefully. Willing to go again next time! (If you take the gas pass, you can't schedule the ticket, so it's great)