Ancient Delphi, Phocis, Greece. The omphalos, or navel, of ancient Delphi.

Ancient Delphi, Phocis, Greece. The omphalos, or navel, of ancient Delphi.

Classic Image / Alamy Stock Photo

Image ID: FGWE9N

Ancient Delphi, Phocis, Greece. The omphalos, or navel, of ancient Delphi. Legend has it that it was a stone thrown from heaven by Zeus to discover the centre of the world.