This is a video demonstration of the Hogwarts moving Grand Staircase recreated by LEGO builder Eric Law and son Zach, who’s the captain of his school’s robotics team and programmed the movement of the stairs. Most impressive. Ten points for team Eric and Zach! “But–” Not another word, Hufflepuffs, or I’m subtracting twenty. “But–” I warned you, now you’re at minus eighty.
Keep going for the video, the Instagram one of which is better quality than the Youtube version.