롯데월드타워 (123층) : Lotte World Tower, Seoul, Korea, 123-floor skyscraper
롯데월드타워 (123층) : Lotte World Tower, Seoul, Korea, 123-floor skyscraper 롯데월드타워, 123층 Lotte World Tower, Seoul, Korea, 123-floor skyscraper LOTTE WORLD TOWER 기술영상 https://www.youtube.com/watch?v=f8GPs4Pmlvo '
2016. 9. 9.
