Visit Hanyang University, a highly-regarded institute in the local community. Watch on as the eager students scramble to and from lectures.
You'll have no end of sightseeing choices when visiting Seongdong-gu. Hanyang University is an ideal place to kick off here, but there are many other interesting places to visit. Gyeongbokgung Palace, Dongdaemun History and Culture Park, and National Museum of Korea are near the modern university and and will cap off your day nicely.