Egypt is the gift of the Nile (Herodotus). Because the river overflowed its banks annually and deposited new layers of silt, the surrounding land has been very fertile, thus founding the basis of the ancient Egyptian civilization. The architecture of that time are monolith structures, excellent in proportion (golden ratio), direction (north/south). No specific construction visible, just the tetraëder in case of the pyramid.

A bridge is mostly defined by its construction to cross an enormous distance, form follows function. The construction of the Eye Of Horus (EOH) is based on the form: the parabola. Both horizontal and vertical. Thus making it possible to construct a monolith structure, like the shell of an egg. The structure forming an eye both at the square of the bridge as well sometimes with mirroring in the river nile. The ratio of the bridge is based on the the golden ratio.