Usually, historical dramas are filmed all over the country to catch the best landscapes and cultural heritage.
“Rookie Historian Goo Hae Ryung” is filmed out of Seoul in Mokpo, Boseong Yeolhwajeong, Mungyeong Saejae, YeongJu Seonbichon, JeonJu, Namwon Gwanghalluwon Garden, and etc. The drama also has scenes in the hot filming location for historical dramas: Hadong House Of Choi Champan.
Interestingly, the drama is also filmed in an easy-to-access for the public and a popular touristic location in Seoul.
It is none other than Changdeokgung Palace and its “Secret Garden” (named also Biwon and Huwon). Among the scenes filmed in the palace, there is this one filmed in the garden.