4.19혁명기념도서관
Library · Jongno-gu
Public library in Jongno-gu. Free entry and reading, with heating and air conditioning.
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Source: library.419revolution.org
Gyeongagjang
FreeCulture space · Seodaemun Stn. (Line 5)
Where Kim Gu worked and was assassinated. Restored to its original form inside Kangbuk Samsung Hospital, free to visit.
Donuimun Museum Village
FreeMuseum · Seodaemun Stn. / Gwanghwamun Stn. (Line 5)
A modern-era alley village recreating the old Saemunan neighbourhood. Free entry to retro tearooms, comic book rooms and a cinema, and a great spot for vintage photos.
National Weather Museum
FreeMuseum · Dongnimmun Stn. (Line 3)
Joseon-era rain gauges and more than a century of Seoul weather records. Far more rewarding if you book the free guided tour.
Donuimun Museum
FreeMuseum · Seodaemun Stn. (Line 5)
A restaurant turned museum.
Gyeonghuigung Palace
FreeHistoric site · Seodaemun Stn. (Line 5)
A designated historic site, Gyeonghuigung served as a secondary palace in the late Joseon period.
Hong Nan-pa House
FreeHistoric site · Seodaemun Stn. (Line 5)
Located in Hongpa-dong, Jongno-gu, this house is where composer Hong Nan-pa, who left behind beloved Korean art songs and children's songs, spent his final years, living here for six years from 1935.

Seoul Metropolitan Library
FreeJung-gu · 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.
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.