The Yanggu Unification Hall is located in the northernmost part of the Civilian Control Zone in Haean-myeon Yanggu-gun. It was built and opened to be utilized as a unification education center that would help broaden people’s understanding about the real situation in North Korea in preparation for reunification and encourage commitment for reunification. The location is 5 km away from The Fourth Tunnel, in the northern end of the punch bowl basin and it first opened in 1996. It has a first exhibition hall, second exhibition hall, agricultural specialty market, and a parking lot that can accommodate about 100 cars. Directly operated by Yanggu-gun District Office, the Yanggu Unification Hall displays things that show the reality of North Korea including household goods, exports and photographs. The agricultural specialty market sells agricultural goods, North Korean products, and tourism souvenirs. Located nearby is the 4th Tunnel, Eulji Observatory, and War Memorial Museum in Yanggu. The Eulji Observatory is the northernmost located observatory in South Korea. The Fourth Tunnel is the only tunnel among the four tunnels dug by North Korea that operates electric cars, allowing visitors to travel inside. The War Memorial Museum in Yanggu was built to shed new light on the nine battles fought in Yanggu during the Korean War. The Yanggu Unification Hall deals with works related to the Eulji Observatory, the 4th Tunnel and War Memorial Museum in Yanggu.