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For most American's or other Western Country's folks for that matter to get an up close look at North Korea is in Panmunjom, the Joint Security Area, between NK and SK.
One of the things I found amusing there is that the NK guards wear a very heavy wool uniform year around. They've got to be miserable during the hot summer months. In contrast, the SK guards wear a comfortable short sleeve shirt and comfortable pants during the summer months.
The Joint Security Area on the SK side is composed of mostly South Koreans and a few Americans. The SK guards are selectively chosen based on two criteria. Their minimum height is around 5' 10" or so. They tower over the NK's like a hulk as the NK guards are all short and very skinny. Additionally all of the SK guards are Black Belt qualified in Karate or another Martial Art. The difference is quite a contrast and very, very obvious.
The NK building there is only a facade with who knows what behind the front side. The nearest NK Village is also fake in that only the front side toward SK is finished. The rear is an empty shell and no one lives there. It is appropriately known as "Propaganda Village". Of course, most have heard of the flag wars in which each side attempts to fly the largest flag. On the SK side there is "Freedom Village" which has resident living in a thriving community of several dozen residents.
American citizens and perhaps others, as well, can visit Panmunjom via the USO facility in Seoul. The USO tour provides bus transportation and lunch is in the Joint Security Area. I believe the Tunnel Tour is also included in this in which visitors can go into one of the numerous tunnels NK has built in that area. It might be a nice diversion for anyone planning to attend the next Winter Olympic Games to be held in SK in 2018.