Over the last few months we have gone through 30 of the worlds greatest mysteries but what we haven’t covered are ancient mysteries. This list aims to put that right! Here are ten great unsolved mysteries of science. Do you have a theory that might solve one of these mysteries? If so, tell us in the comments! This mystery may even be a problem for those legendary investigators from CSI and the like! The bog bodies are hundreds of ancient corpses found buried around the northern bogs and wetlands of Northern Europe. These bodies are remarkably well preserved, some dating back 2,000 years. Many of these bodies have tell-tale signs of torture and other medieval “fun”, which have made some researchers postulating that these unfortunate victims were the result of ritual sacrifices.