Megaliths seen through Google Earth

Following and end of the presentation "principles of megalithic architecture" in this video where the visitor will be able to see megaliths of different countries with Google Earth, a tool which allows to travel the whole world and to visualize by satellite map images, highlights and buildings in 3D. 
Howard Crowhurst establishes the angles and the measurement allowing to unveil visible geometric figures between Briton megalithic sites. 

like Carnac and Erdeven, and this way the structure of a huge world architecture.
What are the links of megalithic sites between them.
What relations do they have with the other historical sites like Egypt pyramids?
From where the meter comes from? Does a unit of measurement on scale of the planet exist? So many questions to which the author tries to answer who doesn't stop seeking the key of the megalithic building.