Giza as Geographic Center of Earth's Landmass

When the Earth's landmass is analyzed, the Great Pyramid sits remarkably close to the geographic center of all land on Earth. The meridian (31.13° E) passing through the Great Pyramid divides the Earth's landmass into approximately equal eastern and western halves. The latitude (29.98° N) similarly bisects the landmass north-south. This was first computed by Charles Piazzi Smyth in the 19th century and has been refined with modern cartographic tools. The probability of this being coincidental is extraordinarily low. It implies the builders either had comprehensive knowledge of global geography (including continents not "discovered" until millennia later) or selected the site for a geodetic reason that inherently optimized this property.