Achasanseong Fortress
아차산성
Getting there
See it on the DealSeoul map Nearby spots and live subway trains
Visit basics
Hours
Not listed
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Achasanseongseong Fortress boasts magnificent views of the Hangang River and skyline.
The 200m-high mountain fortress wall was built to face southeast, towards the Hangang River.
It is also called Janghan-seong or Gwangjang-seong.
A fierce battle was once fought here among Gogury, Baekje and Silla because of its strategic location during the period of the Three Kingdoms.
King Gae-Ro of Baekje (r.
455-475) died in the war by the Goguryeo forces sent by King Jang-Su (r.
413-491) and General Ondal of Goguryeo was also killed in a battle with the Silla army in 590.
Achasan Mountain is popular as a
