There's a word for it Pyramidiot. It was coined by the archaeologist Sir Flinders Petrie for men with equally exotic names, like Charles Piazzi Smyth and Melanchthon William Henry Lombe Brooke. The latter believed that the secrets of the universe are found in the measurements and construction of Egypt's Great Pyramid.

http://www.archaeologydaily.com/news/200910032327/Secrets-of-the-pyramids.html