Seoul Sky is an observation deck on floors 117 to 123 of Lotte World Tower, offering a 360-degree view over Seoul. It looks out across the Han River and the Songpa, Gangdong, and Gwangjin areas. A dedicated elevator reaches the 117th floor in one minute, and the 123 Lounge is used by reservation. The lower floors can be seen for free, but admission to the observation deck is paid.