The National Museum of Korea is a wonderful tourist destination in Seoul. I recommend it very highly.
The modern museum (built in 2005) is very spacious and filled with wonderful works of art. It provides a sense of the long history of Korea. It is very well laid out and includes enough information on the works to give you a sense of the context.
Painted clay pots, Astana, Turfan 6th-7th century. These vessels decorated with pearl rounded patterns were made to be buried with the dead in tombs. The design originated in Sasanian, Persia and spread across Asia.
The museum displays relics and artifacts in six permanent exhibition galleries: Prehistory and Ancient History, Medieval and Early Modern History, Calligraphy and Painting, Asian Art, Sculpture and Crafts as well as one gallery highlighting donations.