The idea that planets are hollow has been around for a long time, but science is only just beginning to consider it worthy of genuine investigation. We have set out to prove that the Hollow Earth Theory has credible scientific merit and should not be ignored. There is a wealth of evidence surfacing today that throws our current beliefs regarding the structure of our planet into serious doubt. Our goal is to accumulate as much of this information as possible and provide it in one easy-to-access place for all.