How old is the oldest pyramid?
Egyptian pyramids
c.2630–2610BC
The earliest known Egyptian pyramids are found at Saqqara, northwest of Memphis. The earliest among these is the Pyramid of Djoser, which was built c.2630–2610BC during the Third Dynasty.[6] This pyramid and its surrounding complex were designed by the architect Imhotep, and are generally considered to be the world's oldest monumental structures constructed of dressed masonry.[7]