The author presents a very wide range of megalithic sites from across the world chosen for their special geographic, astronomical and engineering features.  In addition to obvious candidates such as Stonehenge, the Giza pyramids, Machu Picchu and Easter Island many lesser-known sites from unexpected countries are also included.  The sophistication of prehistoric knowledge concerning astronomical prediction, navigation techniques, and the ability to move and raise huge stones are all examined.  Hardback.  200 pages.  Illustrated throughout.  Bibliography.  Good condition.  Cat No 3673