The 63 Building (63빌딩) is an iconic landmark in Seoul and it is situated in Yeouido. A few months ago, when I first arrived to Seoul, I was lucky enough to have my partner treat me out to their buffet! The restaurant is located in the ground floor of the building and is simply called the Buffet Pavilion.
The restaurant definitely feels like luxury and we were seated right upon opening in a raised veranda. The view above us was gorgeous!