Seoulism is a rooftop bar in Songridan-gil, Jamsil, serving brunch during the day and cocktails in the evening. The rooftop looks out onto Lotte World Tower and holds a 'SEOUL' text installation, a terrace, and photo zones. It draws enough people that sitting where you want is difficult. The address is 48-7 Songpa-dong, Songpa-gu, Seoul.