Just found this cool game, based on a real performance where the artist Marina Abremovic just sat on a desk in a museum for 75 days without talking and the people lined up just sit a minute in front of her.

In this game, you can do this virtually:

http://www.pippinbarr.com/games/theartistispresent/TheArtistIsPresent.html

BTW.: This game has the same opening times as the original museum ;)