Throughout history, a handful of unusually driven individuals have been inspired to explore the limits of the known world, inspiring us & changing our perceptions of our planet through their courageous adventures. What is it that makes these men & women risk their lives in desperate, often fatal efforts to discover distant & inaccessible places? Robin Hanbury-Tenison, himself one of the most distinguished explorers of the 20th century, looks at the greatest of their kind in history, bringing their experiences to life in vivid & compelling anecdotes & drawing on their own first-hand accounts. Among the explorers he features are some who are well known, like James Cook & David Livingstone, & some less so, such as Herodotus, the first European to record an expedition & Nain Singh, who walked huge distances to map the forbidden lands of Tibet, counting every pace. & he asks: what was it, & is it, that motivates these unusual people? & how have they enriched our world through their adventures?