Gyeongbokgung Palace + CBD + Namsan Tower from the Blue House Observatory in Seoul
Yeouido from the Hangang Railroad Bridge at Ichon Hangang Park in Seoul
At the rooftop store below Gwangalli Beach in Busan Gwangan Bridge+ Marine City + Beach
Songdo Central Park + POSCO Tower from Incheon Songdo G Tower Observatory
Daegu Basin and Plains from Daegu Apsan Observatory
Mudeung Mountain + City from Sajik Park Observatory in Gwangju
From Daejeon City Hall Sky Garden to Government Complex + Hanbit Tower
The only one I took a direct picture of is Yeouido, but the Blue House Observatory and Incheon are worth going right away, and if I get the chance, I want to go to observatories in other cities as well.