Embassies, electronics, and Itaewon next door.
Central Seoul’s most foreign-friendly district. Hosts most major embassies, the War Memorial of Korea, the Yongsan Electronics Market, and Korea’s largest mosque. Itaewon, Hannam, and Noksapyeong all sit inside Yongsan-gu.
Yongsan (Line 1, Gyeongui-Jungang, KTX) · Itaewon / Noksapyeong / Hangangjin (Line 6).