The closer we look at the world around us, the more curiosities we see that defy rational explanation. For all the science scepticism, we still have many truths to learn about ourselves and the world around us. Strange and very real events are often pushed to one side because they can't be explained by common sense or modern science. This book delves into some of the most enduring enigmas of the known universe, including timeslips, hauntings, rains of creatures, UFOs, little people, unexplained vanishings, natural phenomena, alien abductions, spontaneous human combustion, strange beasts and powers of the human mind. From the mysterious sites left behind by our forebears to miracles, this book examines the events and stories that have taken us to the very limits of our knowledge. Investigations into many cases result in the discovery of a rational explanation, but there are others that defy our understanding.