The Changdeokgung Palace in Seoul may seem a little chaotic at first glance. However, together with the famous Secret Garden, the fascinating ensemble was designed according to the harmony theory of Feng Shui. It's definitely worth visiting when in the city, and there are many excellent accommodation options nearby, including numerous hotels at https://www.seoulhotelspage.com/en/type/hotels-12/.
Interesting articles for a trip to South Korea:
Changdeokgung Palace in Seoul
N Seoul Tower in Seoul
Deoksugung Palace in Seoul
Facts and figures of South Korea
PICTURES: Gyeongbokgung Palace