Photo: Seoul Metropolitan Government (KOGL)
서울도시건축전시관
Museum · Jung-gu
Officially opened on 28 March 2019.
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Source: sca.seoul.go.kr
Cecil Maru
FreeViewpoint · City Hall Stn. (Lines 1, 2)
A free viewing and rest deck on the roof of the former Cecil Theater, now Jeongdong Theater Cecil. It faces the Romanesque roof of Seoul Anglican Cathedral at eye level, making it a favorite photo spot, and pairs well with a walk along Deoksugung and Jeongdong-gil. Just climb the stairs; open to all at no charge.

Seoul Metropolitan Library
FreeLibrary · City Hall Stn. (Lines 1, 2)
A landmark right in front of Seoul Plaza. Known for its stepped bookshelves and glass-walled plaza views, with a rooftop and cafe for a break.
Seoul Citizens Hall
FreeCulture space · City Hall Stn. (Lines 1, 2), direct access from Exits 4, 5
A public space in the basement of City Hall. Fully heated and air-conditioned, so it's a good escape from heat or cold, with a cafe, gallery and frequent free performances. Directly connected to City Hall Station.
Seoul City Hall Sky Observatory
FreeViewpoint · City Hall Stn. (Lines 1, 2)
A viewing space newly opened in 2026 in the new City Hall building. Downtown views stretching to Deoksugung Palace, Jeongdong and Gwanghwamun Square.
Gungisi Armory Site Exhibition Hall
FreeMuseum · City Hall Stn. (Lines 1, 2)
Displays 45 structural remains of the Joseon-era Gungisi military armory and modern buildings unearthed during construction of Seoul City Hall, along with some 143 related artifacts including the Joseon cannon Bullanggi Japo (Treasure No. 861-2).
Seoul City Hall Sky Plaza Gallery
FreeArt gallery · City Hall Stn. (Lines 1, 2)
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.
Postage Stamp Museum
FreeJung-gu · Euljiro 1-ga Stn. (Line 2) Exit 6, Myeongdong Stn. (Line 4) Exit 5
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.