<p>'As I studied the maps, one thing about them captured my imagination - Across this blank space was written one challenging word, "Unexplored"'<br>In 1937 two of the twentieth century's greatest explorers set off to explore an unknown area of the Himalaya, the breath-taking Shaksgam mountains. With a team of surveyors and Sherpas, Eric Shipton and H.W. Tilman located and mapped the land around K2, the second-highest mountain in the world. It wa...