Ever stood on the coastline, gazing out over the horizon, and wondered what's on the other side? Pondered where you'd end up if you could fly straight ahead until you hit land?
Turns out the answer might be surprising. And even if you pulled out an atlas — or, more realistically, your smartphone — you might have trouble figuring it out. Lines of latitude won't help, and drawing a path on most maps will lead you astray.