Introduction to Abusir: There are 57 pyramids in Abusir, all of which are step pyramids. They were used as royal cemeteries during the Fourth and Fifth Dynasties. The main pyramids here are New Sera, Nei There are three pyramids in Vulkara and Sahura, among which the Pyramid of Nyusera is the most complete pyramid, and it is also the location of the ruined pyramid of Lanniflef. The other largest pyramid is the Pyramid of Neferirkare Kakai.