00:00Did Giza's Great Pyramid hide a secret building plan?
00:05New 3D modeling and scans suggest a hidden internal ramp system, challenging long-held external ramp theories.
00:14Old ideas said outside ramps built it, but those ramps couldn't reach the top.
00:21The new hidden ramp spirals up inside. It explains how huge blocks reached high levels.
00:28Want to see the full secret revealed? Check the link in description.
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