Goguryeo tombs
The site consists of 30 individual tombs from the later Goguryeo kingdom , one of Three Kingdoms of Korea , located in the cities of P'yŏngyang and Namp'o . 
<triplet> Goguryeo <subj> Three Kingdoms of Korea <obj> part of <triplet> Three Kingdoms of Korea <subj> Goguryeo <obj> has part