논현문화마루도서관
Library · Gangnam-gu
Public library in Gangnam-gu. Free entry and reading, with heating and air conditioning.
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Source: library.gangnam.go.kr
National Customs Museum
FreeMuseum · Hakdong Stn. (Line 7)
Opened in August 2000 to mark the 30th anniversary of the Korea Customs Service, the museum preserves the history of customs houses and customs administration and promotes the agency's standing and international image.
Nonhyeon Library
FreeLibrary · Gangnam-gu Office Stn. (Line 7, Suin-Bundang Line)
Public library in Gangnam-gu. Free entry and reading, with heating and air conditioning.

Hyundai Motorstudio Seoul
FreeCulture space · Apgujeong Rodeo Stn. (Suin-Bundang Line)
Hyundai and Genesis cars and design on display. Open until 21:00, but closed the first Monday of the month; parking costs extra.
Kyobo Book Centre Gangnam
FreeCulture space · Sinnonhyeon Stn. (Line 9) Exit 6, Gangnam Stn. (Line 2)
A large bookstore in central Gangnam. Well heated and cooled, ideal for killing time before meeting someone, with stationery, music and a cafe.
Coreana Museum of Art
FreeArt gallery · Apgujeong Stn. (Line 3)
Located on the first basement and second floors of Space C, the Coreana Museum of Art opened in November 2003 to support the arts as a corporation and to connect with the public through art,
Horim Museum, Sinsa Branch
₩10,000Museum · Apgujeong Rodeo Stn. (Suin-Bundang Line)

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.