Maps can be pretty handy. But for Janek Guantam, they're more than a convenience; they're a way of life. For the past 20 years, he has dedicated his life to studying and working as a land surveyor in his home country of Nepal. His special goal is to not only hike Mount Everest - the world's tallest mountain - but to use his meticulously precise techniques of triangulation to determine the exact height of this roughly 8,000-metre mountain, last mapped in 1998. Read More

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