Mastaba

A mastaba (/ˈmɑːstɑːbɑː/, or /mɑːˈstɑːbɑː/) or "pr-djt" (meaning "house for eternity" or "eternal house"), is a type of ancient Egyptian tomb in the form of a flat-roofed, rectangular structure with outward sloping sides that marked the burial site of many eminent Egyptians of Egypt's ancient period. Mastabas were constructed out of mud-bricks (from the Nile River) or stone. In the Old Kingdom, kings began to be buried in pyramids instead of mastabas, although non-royal use of mastabas continued for more than a thousand years.