Benben, in Egyptian mythology, or more specifically, in the Ogdoad, is the mound that arose from the primordial waters, Nu, that had upon it Atum, sitting. It was said to have turned into a small pyramid, located in Annu, which was the place Atum was said to dwell within. Egyptian mythology (or Egyptian religion) is the name for the succession of beliefs held by the people of Egypt until the coming of Christianity and Islam. ... In Egyptian mythology, the Ogdoad are the eight deities worshipped in Hermopolis. ... Nu has the following meanings: Nu is a letter in the Greek alphabet: lowercase ν, uppercase Ν. In Egyptian mythology, Nu (or Nun) is the personification of the ocean which encircled the entire world. ... This article is about the Egyptian god. ... Heliopolis (Greek Ἡλίου πόλις) was one of the most ancient cities of Egypt, and capital of the 13th Lower Egyptian nome. ...

The Benben stone, named after this, was a sacred stone in the solar temple of Heliopolis. It is thought to have been the prototype for later obelisks, and the capstones of the great pyramids were based on its design. The word temple has different meanings in the fields of architecture, religion, geography, anatomy, and education. ... Heliopolis (Greek Ἡλίου πόλις) was one of the most ancient cities of Egypt, and capital of the 13th Lower Egyptian nome. ... The Luxor obelisk in the Place de la Concorde in Paris An obelisk is a tall, thin, four-sided, tapering monument which ends in a pyramidal top. ... The capstone is the highest rock or mount of a structure. ...