There's more to that story too. No-one remembered that the Khufu Pyramid was 8 sided until the specific solar alignment cast the correct shadow/light balance on the structure.I am fairly certain the rosette symbol related to the wireless energy of the sonic temple.
St. Elmo's Fire
The Templar cross may be the great pyramid from above.
And the Templar chevron could be what they found when the broke in.
Something got covered up.
Can't remember if it's a Solstice or an Equinox.
Stankman, any thoughts?