Günther Grünig has succeeded in writing a scientifically grounded work about the megalithic culture that summarizes all the essential information about the fascinating structures of that time in simple, easily understandable language. What he reports often reads as exciting as a crime novel: the history of discoveries, successes and failures during the excavation work, and the theories about the purpose of the structures. His own thoughts on the motives of the builders complement the hypotheses that are controversially discussed by scientists. For those who wish to see the megaliths in person, this book will be an indispensable resource: precise directions and numerous sketches of the structures complete the work.