Unhyeongung

Unhyeongung, also known as Unhyeongung Royal Residence, is a former Korean royal residence located at 114-10 Unni-dong, Jongno-gu, Seoul, Korea. It was formerly the residence of the Heungseon Daewongun a prince regent of Korea during the Joseon Dynasty in the 19th century, and father of Emperor Gojong. Gojong himself also lived in this residence until age 12 when he assumed the throne. It is currently a museum and is open to the public free of charge.

Source: Wikipedia