Unbelievable Abu Simbel Miracle

The innermost chamber is scared sanctuary with small altar and 4 statues. The temple is aligned in such a way that on 22 February and 22 October every year, the first rays of the rising sun reach across the Nile, penetrate the temple and move along the hypostyle hall, through the vestibule and into the sanctuary, and illuminate the statue of Ra-Harakhty, Ramses II and Amun, except Ptah. Before relocation due to Aswan Dam rising water level, the phenomenon happened on 21st instead of 22nd.

It's simply incredible to apprehend how ancient Egyptian people can have such a great knowledge in science, which doesn't seem to exists in current generation of Egyptian.