Sahure chose a site near Abusir for his funerary monument, thus constructing the first pyramid in the region. Earlier, the founder of the Fifth Dynasty, Userkaf, had chosen Abusir as the location for his sun temple. It is unclear why Userkaf chose such a remote site. It may have been significant for the nearby cult of Ra, or, in the opinion of the Egyptologist Werner Kaiser, the southernmost point from which the gilded obelisk pyramidion of the temple of Re in Heliopolis could be seen. It is clear, however, that his decision influenced the history of Abusir, including Sahure's decision to build his monument there. Three of the Abusir pyramids, those of Sahure, Neferirkare and Neferefre, are linked at the northwest corners by an imaginary line running to Heliopolis ("Iunu"). The diagonal was broken by Nyuserre, who positioned his complex between those of Neferirkare and Sahure.