Great Pyramid of Giza is the oldest and largest pyramid of the three pyramids of Giza Necropolis is in and it is believed that the pyramids were built as tombs for pharaohs fourth dynasty of Egypt, Khufu (Χεωψ, Cheops) and constructed over 20 years and is expected to take place in about the year 2560 SM. This pyramid is sometimes referred to as the Pyramid of Khufu.