. . . . . . . . . . . . . . . . . "Adventures in science"@en . "Reveals the ancient secret of how the pyramids were built, by actually building one. A noted Egyptologist, Mark Lehner, and a professional stonemason, Roger Hopkins (This old house), join forces in the shadow of the great pyramid of Giza to put clever and sometimes bizarre pyramid construction theories to the test. Also includes a tour of hidden tombs and passageways of pyramids and computer re-creations of ancient pyramid sites."@en . . "Pyramid!"@en . . . .