
1) Ancient Egyptian pyramid 2) Brian of Private Practice 3) Egyptian mythology 4) Mythological object 
Found on 
https://www.crosswordclues.com/clue/benben

 In Egyptian mythology, specifically in the Heliopolitan tradition, Benben, was the mound that arose from the primordial waters, Nu, and on which the creator god Atum settled. The Benben stone is the top stone of the Egyptian pyramid. It is also related to the obelisk. ==Primeval mound== In the Pyramid Texts, e.g. Utterances 587 and 600, Atum himse...
Found on 
http://en.wikipedia.org/wiki/Benben

A stone resembling an obelisk, representative of a sun ray
Found on 
https://www.encyclo.co.uk/local/10138

1) The first land to rise from the primordial waters.  2) Pyramid shaped sacred stone at Heliopolis
Found on 
https://www.encyclo.co.uk/local/21433
  No exact match found.