서원이 · 서원을
seowon, private Confucian academy
Example
한국의 서원 아홉 곳이 세계유산으로 지정되었어요.
Nine Korean seowon academies were designated as World Heritage sites.
Word parts
서 book+원 institution
Literally 'book institution'; it combined a school with a shrine to scholars.
Good to know
Don't confuse it with 서당, a small village school where children learned basic characters.