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May 29, 2018akirakato rated this title 4 out of 5 stars
Originally broadcast on the National Geographic Channel in 2008, this 46-minute documentary delves into the mystery of the the Great Pyramid. How did the builders lift limestone blocks weighing an average of 2.5 tons 480 feet up onto the top of the Great Pyramid? For the first time, a revolutionary theory argues that the answer may be inside the Pyramid---internal ramps. National Geographic follows experts as they find surprising evidence to support this intriguing new theory. If you're a Great Pyramid buff, this is a must-see.