With shovel in hand, your daughter heads into the the backyard to, as she says, "dig her way to China." You think its a terrible idea. After all, what if she ends up coming out somewhere else, like the Indian Ocean. The water would leak back through the hole and make a complete mess of your lawn.The answer is to go go to this website, which will plot the relevant exit hole. I believe most of the US ends up somewhere in the Indian Ocean.
Are you interested in keeping up with the Joneses? Well you would need to quantify that with property and income levels wouldn't you? Someone has tied Google Maps to the 2000 Census and Housing data to do just that.