detail of the massive corbel-vaulted ceiling of burial chamber of the red north pyramid of dahshur of king sneferu, named for the

africa ancient antique bat bent burial cairo called ceiling chamber cheops corbel corbel-vaulted dahshur desert detail egypt egyptian giza great heritage history hue khafree khufu king kingdom limestome limestone massive monument mortuary named necropolis north old passage pharaoh pyramid pyramids red reddish retro rock ruin rusty sand sinfro sneferu stone stones temple tomb tourism travel tura unesco vault vintage world