Horim Museum holds a strong private collection of Korean art and antiquities, including ceramics, Buddhist works, manuscripts, and other historic objects. The collection is especially respected for its quality, with a number of pieces classed as national treasures or official treasures.
It is outside Seoul's usual palace-and-downtown museum circuit, so it suits travellers with a real interest in Korean material culture. Allow time for the collection rather than treating it as a quick add-on.