00:00say, but the theories are irresistible, and every one of them is unproven. The most respected
00:06Egyptologist of Giza, Mark Lenner, favors the simplest answer, a construction gap, a space the
00:13builders deliberately left to distribute the crushing weight of millions of tons of stone
00:18because the ancient engineers, in his words, often over-engineered. A second theory says it is
00:24another grand gallery, a passage the builders used during construction, then sealed forever.
00:31A third whispers of an antechamber guarding something deeper. A fourth suggests the trace
00:37of an internal ramp, the very...
