Columbia subject headings:
Cultural property--Korea (South)
Historic buildings--Korea (South)
Historic sites--Korea (South)
Koguryŏ (Kingdom)--Civilization.
Korea--History--To 935.
Harvard subject headings:
Princeton subject headings:
Historic sites--China--Manchuria.
Historic sites--Korea (North).
Koguryŏ (Kingdom)--Civilization.
Koguryŏ (Kingdom)--History.
Korea (North)--Antiquites.
Manchuria (China)--Antiquities.