We were in South Korea last September. It’s a great city!
You absolutely have to climb/hike/take the bus to the top of Namsan mountain tot he N Seoul’s tower. Review
If you want an amazing meal that’s elevated but authentic Korean, you must eat at Le Yeon
If you want to have a little dress up fun, there are tons of places around (mostly northern area by the hanok village) to rent authentic hanboks you can wear for the day. Lots of people where them to the palaces and through Honok [village ](http://Bukchon Hanok Village 25-7 Jae-dong, Jongno-gu, Seoul, South Korea Google Maps)
[Insadong Market](http://Insadong, Jongro-gu, Seoul, South Korea Google Maps)
[Gwangjang Market](http://Gwangjang Market 88 Changgyeonggung-ro, Jongno 4(sa)-ga, Jongno-gu, Seoul, South Korea +82 2-2267-0291 Google Maps) has ALL the street food and is also where the Streetgood Korea lady on Netflix is found.
[Namdaemun Market](http://Namdaemun Market 21 Namdaemunsijang 4-gil, Hoehyeon-dong, Jung-gu, Seoul, South Korea +82 2-753-2805 Google Maps) is great for shopping.
Good luck! I wish you all the best. It’s a great city!