Edmund Hillary, Edmund Shackleton, Marco Polo, and Neil Armstrong all accomplished feats that forever change humanity - breaking boundaries, redefining our limitations, and going where no one ever dared. But who was the greatest? We looked back at the feats of history's most prolific explorers on land, air, and ice, and picked our winners.
On Land (Round 2)
Hillary: Polo's years in service of the Kublai Khan may have given Europeans easier access to spices and silks (and kids' swimming pool games), but Hillary took us to the rooftop of the world. The fact that he so humbly refused to say he summited first until after Tenzing Norgay died is gravy.
Lewis and Clark: Moses may have had God on his side, but L&C had Sacagawea, who probably came in handier in interactions with Western Indians. Although they didn't part any seas, they did miraculously lose just one man during their entire voyage, and that was due to appendicitis.