You know it's coming but it's not any less hilarious...
Arden Hayes knows US presidents and geography probably better than you ever will and despite being really impressive, it's probably not the thing people will remember from this video, so be sure to watch it 'til the end.
As you can see here, they have since then cut the end of the video for advertising reasons obviously.
He's so scared that he starts panicking and calls the staff of the attraction for help. When they appear, he gets scared of them as hell too.