North Korea is undoubtedly one of the world's most secretive countries, which means there are so many things we don't know about it.
Formed just after the Second World War, around 25 million people live in North Korea, which has been ruled by three men from the same family since 1948.
Kim Il-sung was the country's first supreme leader, until he died in 1994. Kim Jong-un has been in power since 2013, but many of his grandfather's bizarre rules remain in place, from banning Coca-Cola to capital punishment for folding newspapers.
Three generations rule Arguably the harshest law, the 'three generations of punishment' rule means if one person commits a crime and sent to a prison camp, that person's family can also be sent with them.
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