Pyramidology is a term used to refer to various pseudoscientific speculations regarding pyramids, which are alternative and run counter to the theories and evidence of archaeology, history, astronomy, and other fields of rigorous scientific enquiry. Most of these speculations deal in particular with the Egyptian pyramids, especially the Pyramid of Khufu at Giza. However, "pyramidologists" also concern themselves with the monumental structures of pre-Columbian America (such as such as Teotihuacan the Mesoamerican Maya civilization, and the Inca of the South American Andes), and the temples of Southeast Asia.

The claims of pyramidology are regarded as pseudoscience by the scientific community at large, who regard their hypotheses as sensationalist, inaccurate and wholly deficient in empirical analysis and application of the scientific method. Even so, several writers whose speculative works consist of or use material of this nature have found

The main types of pyramidological accounts involve one or more aspects which are :

• pseudoarchaeological: Theories that deny that the pyramids were built to serve as tombs; alternative explanations about the construction of the pyramids (for example the use of anti-gravity technology); and hypotheses that they were built by someone other than the historical Ancient Egyptians (e.g. Atlanteans, extra-terrestrials).
• numerological: Theories that the measurements of the Great Pyramid are esoterically significant, and their geometric measurements contain some encoded message.
• Pyramid power: Claims that pyramids as a geometrical shape contain supernatural powers.

See also

• Robert Bauval
• Graham Hancock