Clarence saw the giant Apollo Saturn V image that was projected on the Washington Monument and wanted to know how they did that. Leo says it was probably done with laser projection. It's state of the art, very cool, and nearly life-size too. Not only that, but they're also showing the Lunar Module landing on the moon. Overall, great use for the Washington Monument as a back drop and a great way to celebrate the 50th anniversary of the Apollo Saturn V.
You can see it on YouTube now.