Amenemhet III, the last powerful king of the Twelfth Dynasty, built two pyramids: the Black Pyramid in Dahshur and later the Pyramid of Hawara. Thus, based on this fact, it thought that Amenemhat was buried in Hawara. The Pyramid of Hawara was built of mud brick, and then cased with fine Tura limestone. Its pyramidion was found next to the pyramid. The height of the pyramid is about 58 m and each side of its base measures about 100 m. Since the pyramid’s limestone blocks were reused in later buildings, its actual aspect now resembles a small mud-brick mountain. There are also a few remains left from the mortuary temple situated to the north of the pyramid. The entrance to the pyramid lies in its southern face. Leading to a dead passage, that entrance was cunningly designed to deceive the robbers. From the passage, there were 20 tons of stones that slid sideways to open a door to a second passage leading to the burial chamber. In 1889, Petrie entered the pyramid and reached the burial chamber which is made of one huge block of quartzite, the weight of which is 110 tons. It has no door, but only a hole in its roof that was blocked with a big block of stone that weighs 45 tons. In spite of all these precautions, thieves managed to enter the burial chamber and steal many of its valuable contents.