Bent Pyramid

The Bent Pyramid is an ancient Egyptian pyramid built under the reign of the Pharaoh Sneferu around 2600 BCE. A product of early attempts by the Egyptians to perfect pyramid construction, it is so-called because of its sudden shift in degree of inclination partway up to its peak.

In 48 BCE, the Medjay Bayek hunted Rudjek of the Order of the Ancients to the Bent Pyramid where he slew both him and his bodyguard Hypatos. At the time, millennia after it was first erected, it still contained the vast treasure hoards of the Old Kingdom.

Reference

 * Assassin's Creed: Origins