FreePhoto: Wikimedia Commons (CC BY-SA)
서울도서관
Library · Jung-gu
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.
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Source: lib.seoul.go.kr
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)
Seoul Plaza
FreePlaza · City Hall Stn. (Lines 1, 2)
The lawn plaza in front of City Hall, host to many festivals and events, plus a winter ice rink. Little shade, so pair it with a walk along the Deoksugung stone wall road.
Seoul Hall of Urbanism & Architecture
FreeMuseum · City Hall Stn. (Lines 1, 2)
Officially opened on 28 March 2019.
Starfield Library
FreeGangnam-gu · Samseong Stn. (Line 2), Bongeunsa Stn. (Line 9)
Famous for its 13m-high shelves, this is a photo hotspot inside COEX Mall. Ideal escape from summer heat and winter cold, with plenty of seating.
Jeongdok Public Library
FreeJongno-gu · Anguk Stn. (Line 3)
A campus-style library on the Bukchon hillside. A healing spot where you can picnic on garden benches among spring cherry blossoms and autumn leaves.

Namsan Library
FreeYongsan-gu · Myeongdong Stn. / Hoehyeon Stn. (Line 4)
A library atop a stairway on the slopes of Namsan. Read a book, then walk straight on to Namsan Park and N Seoul Tower on a free route.
Jongno Library
FreeJongno-gu · Gyeongbokgung Stn. (Line 3)
On the edge of Sajik Park and Inwangsan. Read, then stroll the park; pair it with Gyeongbokgung for a full day.
Seongdong District Library
FreeSeongdong-gu · Haengdang Stn. (Line 5)
A quiet neighbourhood library on a hill in Haengdang-dong. A free climate-controlled rest stop between Seongsu and Seoul Forest outings.