Why did the pyramids have no doors?

The pyramids, particularly the Great Pyramid of Giza, were built as monumental tombs for pharaohs and were designed to protect the deceased and their treasures from tomb robbers. Instead of doors, the architects employed concealed entrances and hidden passageways to deter intruders. These features made it more challenging to access the burial chamber, ensuring that the pharaoh’s final resting place remained secure for eternity. Additionally, the pyramids were intended to symbolize the pharaoh's divine journey to the afterlife rather than serve as accessible structures.