Archaeocryptography
Archaeocryptography (from Greek ἀρχαῖος, arkhaios, "ancient" and κρυπτός (kruptós), "hidden, secret"; and γράφειν (graphein), "to write") is the attempt to decode an ancient monument or structure by supposing an underlying mathematical order beneath the proportions, size, and placement to find any re-occurring or unusual data in respect to that which is being studied, or within another monument or structure.
Archaeocryptography is not a recognized branch of archaeology or of any other academic discipline. It is an example of pseudoscience or pseudoarchaeology that employs contrived calculations involving many free parameters to achieve an impressive-looking result.