We are breathtaking not only from the size but also from the age of some of the monuments of the ancient world. Our ancestors in ancient and medieval times, too, admired the huge buildings created in an era so distant from their own, that no knowledge of this has not survived, and also wondered who were their builders. Ancient Greeks, builders themselves are not the last, were so amazed by the size of stone blocks in the walls of the ancient cities of Mycenae and Tirinth, that they called their builders "cyclops", one-eyed mythological giants. (Archaeologists still use the term "cyclopean" to describe the style of masonry made of large, roughly edged stone blocks.) Europeans came up with similar stories explaining the origin of prehistoric standing stones and stone tombs. Some linked their appearance to fairies or dwarves, but the list of magical builders was always headed by giants. In the Netherlands, megalithic tombs-corridors, sometimes as long as 60 feet long, are traditionally k