Omphalion

Omphalion in Greek means `navel (of the earth)`; compare the omphalos of Delphi. ==Hagia Sophia== The Omphalion is a group of circular marble slabs fitted into a design on the main floor of the Great Church of Hagia Sophia (Church of the Holy Wisdom) in Constantinople (modern Istanbul). The Omphalion is located in front of the Ottoman muezzin lo.....
Found on http://en.wikipedia.org/wiki/Omphalion
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