Never-before-seen photos of North Korean leader Kim Jong-un's mansion in Pyongyang

Never-before-seen photos of North Korean dictator Kim Jong-un's mansion has been revealed in a series of eye-popping photos.

The pictures, taken at an unknown location near the North Korean capital Pyongyang, was taken by Valery Sharifulin, a Russian journalist, who was given access to Kim's mansion while Russian Foreign Minister Sergei Lavrov visited Pyongyang. 

See full photos below.