In Last Secrets, author John Buchan reveals how the foundational aspects of our planets geography were largely charted in the early twentieth century, leaving only the task of deepening our understanding of these monumental discoveries. This captivating exploration takes you through nine pivotal revelations that uncovered the earths last enigmas—from the mysterious cloud city of Lhasa to the daunting ascent of Mount Everest, which still awaited its conquerors. Join us on these extraordinary journeys that brought the world’s final great mysteries into sharp focus. - Summary by Steven Seitel

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