How old is the oldest pyramid?
Egyptian pyramids
{'answer_start': array([148]), 'answer_text': array(['c.2630–2610BC'], dtype=object)}
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]