details of the burial chambers inside the red north pyramid of dahshur of king sneferu, named for rusty reddish hue of its red

africa ancient antique bat bent burial cairo called ceiling chamber chambers cheops corbel dahshur desert details egypt egyptian giza great heritage history hue inside khafree khufu king kingdom limestome limestone 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