The Grand Gallery features a corbel haloed design and several cut "sockets" spaced at regular intervals along the length of each side of its raised base with a "trench" running along its center length at floor level. What purpose these sockets served is unknown. An antechamber leads from the Grand Gallery to the King's Chamber.

Great Pyramid of Giza, Section of the Grand Gallery

The Grand Gallery features a corbel haloed design and several cut "sockets" spaced at regular…