Trying to find out what point on the earth is exactly opposite me. In other words, if I dug down and through the earth, passing through the center of the earth, where would I end up? Turns out lot of people want to know, and there's a site for it.

This is one tool to use, on the site AntipodesMap.com, or one very like it on Antipodr.com. One of them you enter your address, but the other reads your IP and puts it on the map to use.

For everyone in the U.S., you end up in the Indian Ocean. Me, I end up just a little west of Australia.