Photo: Wikimedia Commons (CC BY-SA)
우표박물관
Museum · Jung-gu
A compact free museum on the history of stamps. In the middle of Myeong-dong, so it's a handy escape from the heat or cold.
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Source: stampmuseum.kr
Bank of Korea Money Museum
FreeMuseum · Hoehyeon Stn. (Line 4)
The 1912 Renaissance-style former bank building, a listed heritage site, is a sight in itself. Easiest to reach by subway.

Woori Bank Museum of Banking History
FreeMuseum · Hoehyeon Stn. (Line 4)
A small free museum in the basement of Woori Bank's head office. Open weekdays only, so a lunchtime visit works best.
Chojun Textile & Quilt Art Museum
₩8,000Museum · Myeongdong Stn. (Line 4)
Opened on 27 October 1998 on the slopes of Namsan, the Chojun Textile & Quilt Art Museum is Korea's only textile art museum, holding a wide range of Korean and international textile artworks. Its founder is Kim Soon-hee, director of Jeil Cultural Center.
Myeongdong Cathedral
FreeHistoric site · Myeongdong Stn. (Line 4) Exit 8, Euljiro 1-ga Stn. (Line 2) Exit 5
The Gothic cathedral that symbolises Korean Catholicism. The heated and cooled sanctuary is a good break from Myeongdong shopping, and the basement 1898 arcade has cafes and restaurants.
Seoul YWCA Sports Center
₩8,000Sports facility · Euljiro 1-ga Stn. (Line 2)
Public indoor pool with open swim sessions.
History Museum of the Sisters of St. Paul of Chartres
FreeMuseum · Myeongdong Stn. (Line 4)
The museum collects and studies the belongings and records of sisters who devoted their lives to spreading the Christian message in new cultures, conveying Christian culture through the visual language of exhibition.
National Museum of Korea
Partly freeYongsan-gu · Ichon Stn. (Line 4, Gyeongui-Jungang Line)
Korea's largest museum, with all permanent galleries free. The spacious lobby and Reflecting Pond garden are good for a rest, and Wednesday and Saturday evening openings are quieter.
National Folk Museum of Korea
FreeJongno-gu · Gyeongbokgung Stn. / Anguk Stn. (Line 3)
A free museum of Korean daily life. The outdoor Memory Street and children's museum make it great for families.
Seoul Museum of History
FreeJongno-gu · Gwanghwamun Stn. / Seodaemun Stn. (Line 5)
A free museum on Seoul's transformation from the Joseon era to the present. The old Tram No. 381 outside is a photo favourite.
National Museum of Korean Contemporary History
FreeJongno-gu · Gwanghwamun Stn. (Line 5) Exit 2
A free modern history museum facing Gwanghwamun Square. Insider tip: the rooftop viewpoint takes in Gyeongbokgung and the square at a glance.

Korean Film Museum
FreeMapo-gu · Digital Media City Stn. (Line 6, Airport Railroad, Gyeongui-Jungang Line)
Free museum covering 100 years of Korean cinema. The on-site film archive library screens classics at no charge.