There is one place named Undul-san in South Korea.
All places in the world called "Undul-san".
Sinchon (14)
Sangchon (13)
Naedong (13)
Taedong (12)
Songjong (12)
Pyongchon (12)
Cholgol (12)
Yongdong (12)
Singi (12)
Changdong (12)
Haktong (11)
Tongchon (11)
Saeto (11)
Chungni (11)
Hadong (11)
Chungdong (11)
Wolchon (11)
Yangchon (11)
Kyodong (10)
Yongsan (10)
Songjongni (10)
Yongam (10)
Tokkol (10)
Chungsan (10)
Sadong (10)
Chungchon (10)
Wondong (10)
Sangni (10)
Songsan (10)
Sinpyong (10)