Research by Joseph Davidovits suggests that pyramids and temples were constructed using agglomerated limestone, rather than quarries, and hoisted blocks of natural limestone.

Khaled M. Taufik argues that the secret tomb chamber in the Pyramid of Cheops has yet to be found. Illustrated theory.

A new theory that uses diagrammatic geometry to reveal a possible connection between the Great Pyramid, the golden ratio and the ancient Egyptian Royal Cubit.

Article written by Stephen Goodfellow. Includes calculations, dimensions, coordinates, letters, and images.

Debates between authors John Anthony West, Robert Schoch and Robert Bauval (for the "Lost Civilisation" theory), and Chris Ogilvie-Herald and Ian Lawton, the authors of "Giza: The Truth".

Reviews and comments on the book by Ian Lawton and Chris Olgivie-Herald which de-bunked many esoteric theories on the pyramids, with responses by the authors.

Article contends that the pyramids of Giza were positioned using a square root arrangement, within a phi defined underlying groundplan. Includes details of the Egyptian number system and the geometry of the Sun God.

A numerological analysis of the Great Pyramid and Giza Plateau.

Argues that ancient methods of measurement and numerical ratios are encoded in the Great Pyramid of Giza.

A popular approach to the topic, with amateur articles submitted by users and a picture tour. Embraces both mainstream news stories and amateur theories.

Christian reinterpretation of the Great Pyramid which states God helped design the Great Pyramid to aid prophesy.

Proposes a design strategy for the Great Pyramid to explain the fact that there exists a point equidistant from three of its internal chambers.

Suggests that the Great Pyramid at Giza was built around a colossal water pump.

A discussion of pyramids, in history and in myth, with a focus on debunking claims of pyramid power.

Presents two studies by Bill McNulty and an open letter to Dr. Mark Lehner. [PDF files]

Deriving the architect's plan of the interior of the Great Pyramid through a diagrammatic approach.

Proposes that the design of the Giza Necropolis is an attempt at intelligent communication.

Is a secret tunnel being excavated in the Great Pyramid? Part of Richard Hoagland's large site that also investigates Cydonia and the Miami Circle

Tries to explain the scientific, philosophical, and divine revelations of the Great Pyramid, as a biblical, chronological device.

Giza pyramids layout geometry : a symmetrical plan centred on Khafre.

Explores the ideas in the book by Robert Bauval, which argues that Giza pyramids were a faithful mimicry of the stars forming the 'belt' in the constellation of Orion.

Cark Munck suggests that there is a global pyramid matrix centered in Giza, Egypt, and that latitude and longitudinal locations of monuments are part of a code, as shown by GPS readings.

Describes the 'secret power' inside the pyramid. Make your own pyramid to test it.

Holger Isenberg presents a simple trigonometric algorithm on this 19th-century idea.

Describes Williams's Hydraulic Theory to the construction of the Great Pyramid of Egypt, otherwise known as Cheops's Pyramid and Khufu's Pyramid. Riddle of the Ages now solved.

Article proposing a construction date thousands of years before the accepted 3rd dynasty.