<P> In 1864 , Charles Piazzi Smyth , Astronomer Royal for Scotland , gave in his book Our Inheritance in the Great Pyramid the coordinates with 30 ° 00 ′ N 31 ° 00 ′ E ﻿ / ﻿ 30.000 ° N 31.000 ° E ﻿ / 30.000 ; 31.000 ﻿ ( Geographical centre of all land surfaces on Earth ( Smyth 1864 ) ) , the location of the Great Pyramid of Giza . In addition , in October of that year , Smyth proposed to position the prime meridian at the longitude of the Great Pyramid because there it would `` pass over more land than any other '' . He also argued the cultural significance of the location and its vicinity to Jerusalem . The expert committee deciding the issue , however , voted for Greenwich because `` so many ships used the port of London '' . Referring to Smyth 's book , Frederick Augustus Porter Barnard wrote in his 1884 book , The imaginary metrological system of the Great pyramid of Gizeh , that the perfect location of the Great Pyramid along the longitudinal line could only have been purposefully done by its builders . </P>
<P> In 1864 , Charles Piazzi Smyth , Astronomer Royal for Scotland , gave in his book Our Inheritance in the Great Pyramid the coordinates with 30 ° 00 ′ N 31 ° 00 ′ E ﻿ / ﻿ 30.000 ° N 31.000 ° E ﻿ / 30.000 ; 31.000 ﻿ ( Geographical centre of all land surfaces on Earth ( Smyth 1864 ) ) , the location of the Great Pyramid of Giza . In addition , in October of that year , Smyth proposed to position the prime meridian at the longitude of the Great Pyramid because there it would `` pass over more land than any other '' . He also argued the cultural significance of the location and its vicinity to Jerusalem . The expert committee deciding the issue , however , voted for Greenwich because `` so many ships used the port of London '' . Referring to Smyth 's book , Frederick Augustus Porter Barnard wrote in his 1884 book , The imaginary metrological system of the Great pyramid of Gizeh , that the perfect location of the Great Pyramid along the longitudinal line could only have been purposefully done by its builders . </P>
where is located the center of the earth
where is located the center of the earth
Greenwich
Greenwich