You might know that Marco Polo traveled the Silk Road, Lewis and Clark headed west with the help of Sacajawea, and Sally Ride blasted into space. But what do you really know about these bold explorers as people? What were they like as kids? What pets or bad habits did they have? And what drove their passion to explore unknown parts of the world?   With plenty of maps and juicy tidbits about everything from favorite foods to first loves, takes readers on a journey across oceans, continents, and beyond, celebrating the wanderlust that has shaped our understanding of the globe.