Here is an interesting article by Edward Kohout on the history of the famous Sibly chart of the USA. Kohout suggests the selection of this particular chart was influenced by the ideas of Freemasonry.

http://cura.free.fr/xxv/22sibly.html

There is a clear similarity in this thesis and that of David Ovason in his book: The Secret Architecture of Our Nation's Capital : The Masons and the Building of Washington, D.C.

http://www.amazon.com/Secret-Architectu ... 0060195371

Mark