Trip to Korea - 63 building seaworld

My husband and I went to several interesting places in Korea. The first place was 63 building at Yeouido in Seoul. There's shuttle bus if you don't know the direction. I didn't know where to take the bus and didn't see any bus coming saying 63 building. So we decided to walk. It is very easy to walk and only takes 15 minutes. 63 building is 63 stogies building with yellow colored building so it's easy to find.

Direction (subway)
1. Start from Seoul Station. - Line #4
2. Get off at Gongdeok Station (one stop away from Seoul Station) and change subway line to Line #5
3. Get on the Line # 5 which goes to Yeouinaru
4. Get off at Yeouinaru ( two stops away from Gongdeok station ) and take exit #4
5. As you exiting from the station keep walking to the right side and see the sign for 63 building on the street. the building is pretty sticking out yellow colored (golden yellow).

63 building sometimes offers foreigner discount, so check if they have discount option available at the time that you're visiting at the ticket center. the admission fee is 19,000 per person. I paid pretty much same price when I went to Coex aquarium at Gangnam, Coex was a lot bigger then 63 building and has more fish. 63 building was fun but wonder if it worth of paying that much.