The Korean Demilitarized Zone DMZ is a strip of land running across the Korean Peninsula. It is established by the provisions of the Korean Armistice Agreement to serve as a buffer zone between North Korea and South Korea. The demilitarized zone (DMZ) is a border barrier that divides the Korean Peninsula roughly in half. It was created by agreement between North Korea, China and the United Nations Command in 1953. The DMZ is 250 kilometres long, and about 4 kilometres wide.

Dora Observatory is on the South Korean side of the 38th parallel. Situated on top of Dorasan (Mount Dora) in Paju, the observatory provides scenic views across the Demilitarized Zone. Visitors can see the North Korean territory through binoculars from the 304 square feet, 500-person capacity observatory. They will be able to see the North Korean propaganda village situated in the DMZ, and can also see the city of Kaesong. 

The observatory is very close to the Third North Korean Infiltration Tunnel dug by North Koreans into the South. The Dorasan Station, also nearby, is designed to be the station that connects the railroads of the South and North one day in the future. 

Kim Jong-un may be preparing for an invasion of South Korea through a network of secret tunnels, with up to 20 underground passages feared to already exist. South Korean officials already know about four tunnels under the border between the two countries - but fear there could be as many as 16 more.