Seoul Sky (Lotte World Tower Observatory)

Seoul Sky fills the top floors of Lotte World Tower, the 555-meter, 123-story skyscraper that dominates the Jamsil skyline. You start at the ticket office and lobby on B1F of Lotte World Mall, then an elevator takes you straight up to the 117th floor. From there the observatory spreads over seven levels. The 118th floor holds the Sky Deck, a glass floor where the city sits roughly 500 meters below your feet, and the 120th floor has the Sky Terrace, an outdoor section with open-air views. On clear days you can trace the Han River, Namsan Tower and the mountains ringing the city, while Seokchon Lake and the Lotte World theme park look like a miniature model right below. There is a cafe on the 122nd floor and a lounge bar on the 123rd. Prices rose on 1 April 2026, so the adult ticket is now 33,000 won. For photos, the glass floor works best in daylight, while sunset and the first hour of darkness give the city-light panoramas most people post.