Collapsed 'Black' Pyramid of Amenemhet III

Of the three Middle Kingdom pyramids at Dashur, the best remains belong to Amenemhet III, a ruler of the 12th Dynasty. (two other 12th dynasty pharaohs -- Senusret III and Amenemhet II -- also built pyramids here, but they are completely ruined.

The core of the pyramid was built of dark, almost black mud brick, which still stands as an odd-shaped sentinel. The stone casing has completely collapsed around it.