Hwanghak-dong Flea Market (황학동 벼룩시장) is one of the famous market place in Seoul, South Korea.  There is shrine for Guan Yu (关羽 [GuānYǔ]) . Walking around pick-up some second-hand items will be a good experience. Korean Noodle is delicious here and Beef and Pork BBQ also. 

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Goguan Studio is a special place where you can wear Hanbok (Korean traditional clothes), receive make-up and hair service and take pictures. Started as a Hanbok shop back in 1962. It offers a selection of 300 different Hanbok as well as hair ornaments that you can try on. There are also professional photographers and equipment on site for those of you would like to take more professional photos. Traditional tea and calligraphy experience is provided for free. They have 400sets of Hanbok for female, 100sets for male and 100sets for children, you can have a various choice. As an option, you can get matched hair up and make-up by qualified make-up artists You can take pictures as many as you want by yourself with your camera at every single shooting set. And also get photos taken by professional photographers. A lot of props such as a sword, a fan, a bag and music instrucment are prepared for you and also selfie will be offered for free. 

It offers very good chance to you to learn about the background of the Korean War, the progression of the war and how a truce was eventually established. Exhibits also display ammunition used by hostile and friendly forces, information and artifacts from people displaced by the war, and information on major battles. and If you visit here after DMZ tour, it will be perfect for you to understand the history of Korean War.