It is amazing how these types of monuments a created by so many different cultures. These are the most amazing sites ever seen and that are viewed by thousands. I have seen something similar along time ago I believe they were made by the Mayan's, it is simply amazing how most are built by the design and alignment of certain constellations of stars. Was there a specific part of this topic that you like the most? Why were the alignment of such stars as the moon and sun so important?