Korea DMZ - North Korea

Ever since the cold war the country has been arbitrarily divided by International court.  North Korea allied with Russia and China, and South Korea with the USA and other western powers.  The difference between the two countries is astonishing as any glimpse into today's modern media on the subject will tell you.
To encourage more peace, the two countries have a 'demilitarized zone' either side of the border which has been successful in preventing skirmishes and border crossings.  A tour group allows you to visit some areas of the DMZ and learn a bit about the history, as well as visit the tunnels which were discovered of North Korean's trying to make their way into the country.  An interesting historical insight, even if it felt slightly biased.