Check out this YouTube video about a discussion of Luxor (Las Vegas) by William Cooper.

I'm fairly certain that complex was built by the Freemasons.

In speaking of the name, "Great Architect of the Universe," Albert Pike (33rd Degree Freemason) had this to say; "It is but an old term revived. Our adversaries numerous and formidable as they are, will say and will have a right to say that our Creative Principle is identical with the Generative Principle (god) of the Indian and Egyptian."
- Blavatsky's Isis Unveiled, Vol. 2, p. 377.

Hidden in plain sight for sure.