The old joke is that if you dug a deep enough hole through the Earth, you would end up in China. Well thanks to a website called Tall Eye, we now know where you'd end up if you started your dig right here in Peterborough. You would end up in the Indian Ocean just off the coast of Australia. So there you have it. Start digging.
Visit Tall Eye to find out other useful things such as "If I walk in a straight line around the world, where will I pass?"