Great Pyramid Mystery Solved? - How were the blocks raised to the top of the 489ft Great Pyramid? An architect develops a theory about a snaking internal ramp that's been hidden inside the pyramid for 4500 years.

Unlocking the Great Pyramid :

SUN NOVEMBER 16 9P et/pt

History, Events, Ancient, World, Exploration, Adventure, Lost, Worlds, egypt, unwrapped, great, pyramid, valley, kings, pharaoh