Cheonggyesan

Command Post TANGO is a United States military bunker complex in South Korea. It is the Theater Command Post for the Combatant Commander, UNC/CFC/USFK and State Department Korea and can reportedly withstand a tactical nuclear weapon through the use of several layers of blast doors. It is located in South Korea.

Cheonggyesan is a mountain in South Korea. It extends over the district of Seocho-gu in Seoul, the national capital, and the cities of Gwacheon, Uiwang, and Seongnam in the province of Gyeonggi-do. It has an elevation of 620 m (2,034 ft).Cheonggyesan Mountain is located in the outskirts of Seoul and has Seoul Land, a theme park, Gwacheon Seoul Grand Park, Seoul Racing Park, and Gwacheon National Science Museum.