Who built the pyramid khufu?

Answer 1

Masons, quarrymen, scribes and thousands of naked slaves toiled for twenty years
Khufu well not him personally. He commanded that thousands of slaves were put to work on the task.
Khufu the most famous Pharaoh of the fourth dynasty. Well he didn't do the work himself thousands of masons, quarrymen, scribes and slaves did the actual work.
Khufu commanded it to be built as his eternal resting place. No aliens involved just people.

Answer 2

Khufu. Although he did not do any of the work himself. He commanded his nephew Hemiunu to draw up plans for a tomb in keeping with his status as god-king, a pyramid bigger than anything built before or since. Perhaps as many as 20,000 workers gathered together to execute the task: stonemasons, carpenters, rope makers, smiths, surveyors, overseers, bakers, cooks and of course the scribes the pharaoh's project managers. To do the heavy labouring jobs thousands of naked slaves.