18- Omphalos( Umblicus) of world at entrance of Temple of Appolo in Delphi Published October 3, 2015 at 3888 × 2592 in My Travel To Greece-Cradle of Western Civilization, but ironically not its beneficiary-A Greek Tragedy (F. Sheikh) Omphalos, Umblicus, considered center of the world at the God Appolo Temple entrance.