Musinsa Terrace Hongdae is a complex cultural space on the 17th floor of AK& in Hongdae, combining clothing shopping, coffee, and exhibitions. It runs a shop, kitchen, lounge, and park alongside an outdoor terrace open on all sides on one floor, with views across Seoul including the National Assembly, Lotte Tower, 63 Building, and N Seoul Tower. Entry requires downloading the Musinsa app and verifying the sign-up and login screens, and using the dedicated 17th-floor elevator on the Holiday Inn Express building side. You must transfer once on the 5th floor, making the route complicated and the entrance difficult to find.