How the Aliens Built the Pyramids

The aliens were sitting on mars when they found out they wanted to prank the people down on earth. So, they decided they would make giant pyramids in Egypt.

Step 1: Mine rocks and paint them to match the ones in Egypt.

Step 2: Take the rocks to the alien mothership and load it up with fuel.

Step 3: Wait for night to fall and place down the pyramids without the humans even knowing they had been there.