Hongneung Arboretum
Hongneung Arboretum ( Hangul:홍릉수목원 Hanja: ) is an arboretum in Dongdaemun-gu , Seoul , served by Seoul Subway Line 6 . 
<triplet> Dongdaemun-gu <subj> Seoul <obj> located in the administrative territorial entity <triplet> Seoul <subj> Dongdaemun-gu <obj> contains administrative territorial entity <triplet> Seoul Subway Line 6 <subj> Seoul <obj> located in the administrative territorial entity