As a kid, I remember being told about "digging a hole to China." Turns out, in order to do so, you'd have to be somewhere in South America--in Argentina, Chile, Uraguay, Paraguay, or southern Brazil. Or, one either the ocean floor of the South Atlantic or South Pacific. Digging through the core from where I grew up would have left me somewhat distant from the soutwest corner of Austraia. Digging down from our current home in Pebble Beach, CA would result in a location in the Indian Ocean, southeast of Madagascar. All of this neat information comes to you from Antipode Map. See graphic below. Special thanks to Dave, over at PhilosFX for pointing this out.