This is fun. The folks at Good Magazine have put together an interactive map of some of the greatest voyages in history.
Magellan and Columbus and Marco Polo are all on there. But so are Ken Kesey's Electric Kool-Aid Acid trip, Jack Kerouac's route from On the Road, and the Pequod's voyage in Moby Dick. You can select a voyage and click through slideshows to see, for instance that Ken Kesey and the Beats sort of didn't get along, or that Captain Cook was on secret orders to claim any new continents he might happen to stumble upon for England. Or that Pizarro was a real asshole. That sort of thing.
One of history's great trips.