The Great Pyramid

Figure 1. The Great Pyramid: geographical center of the land surface of the whole world (from "Description de l'Egypte").

James Fergusson, in his great work, the History of Architecture, describes the Great Pyramid:

"Nothing more perfect, mechanically,  has ever been erected since that time, ..." * 

Location: Giza, Egypt

Latitude = 29º 58' 51" North                                                                       

Longitude = 31º 08' 6.48" East

        The time of the building: about 3443 BC (Alpha Draconis, or Thuban, was the pole star about 3443 BC. Alpha Draconis was distant 3.69731025° from the true north celestial pole, or 26.32062897° above northern horizon of the Giza (lower culmination).

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        *James Fergusson, History of Architecture, Vol.1, London, 1865, pg. 825.