Chinese archaeologist Si Weiwei has recently discovered an incredible 1000 year old tomb covered in artistic frescoes and complete with an ancient drainage system in northeast China. The tomb dates from the Liao Dynasty (907-1125 AD) and the lively frescoes include depictions of vehicles, camels, and horses. Indiana Jones wannabes beware however, the drainage system comes with rolling stone balls that may have been designed to keep tomb raiders away.