The Great Pyramid at Giza surrounded by ruins of the larger Giza funerary complex.
Pyramids near Bagrawiyah, northern Sudan. This was the area of Meroë, the ancient capital of Kush.
Some details at en.wikipedia.org/wiki/Bagrawiyah
The Bent Pyramid is unique for two reasons. The first is the angle change. There are two theories for this change. The first is that the builders may have gotten tired and wanted to reduce the volume and to finish faster. Another is that when the pyramid at Maidoun collapsed, the architect lost his nerve and changed the angle. The angle at Maidoun was 52 degrees as is the base of the Bent Pyramid. At the bend, the angle is changed to 43.5 degrees up to the peak.
The second reason is that it has two entrances. The first is in the middle of the northern side and is about 12m above the ground. It leads to the upper chamber. The second entrance is on the western side and is just above the ground. It leads to the lower chamber. The floors of both chambers were built 4m deep with small stone blocks.