Since we're talking about exploration, I have to mention the recent passing away of Edmund Hillary, one of the great explorers of our time. His exploits on Mt. Everest, together with Tenzing Norgay, are well known. What I didn't know was how much he's done for Nepal:
...he formed a foundation, the Sir Edmund Hillary Himalayan Trust, that raised millions and built more than 30 schools, a dozen clinics, two hospitals, a couple of airfields, and numerous foot bridges, water pipelines and other facilities for the Sherpa villages in Nepal. In 2003, Nepal conferred honorary citizenship upon Sir Edmund, the first foreign national to receive that distinction.
Quite a remarkable life.