Lotte World Tower Supertall skyscraper in Seoul, South Korea

Lotte World Tower (Korean: 롯데월드타워) is a 123-floor, 555-metre (1,821 ft) supertall skyscraper located in Seoul, South Korea. It opened to the public on April 3, 2017 and is currently the tallest building in the OECD, and is the 5th tallest highscrapper in the world.