Polar fleece, titanium, and GPS have forever changed the face of exploration. Today an explorer can make a phone call from the top of Mount Everest and geo-locate himself in the thickest rain forest or the widest desert. Yet despite these advances, few modern adventures get close to the charm and romance of 'The Desert Road to Turkestan,' 'Mysterious Temples of the Jungle,' and 'Airplanes Come to the Isles of Spice.' In those bygone days, the pages of National Geographic were as close as most people could get to high adventure and faraway lands-and here's a chance to recapture them. Alongside noteworthy names like Robert Peary, Amelia Earhart, and Teddy Roosevelt, other less famous travelers take us on long-forgotten trips to places few Americans had gone.