If you're line-speed-challenged, stick to the first couple of clips. To see the roof going up in front of your eyes, try the longer ones. And as usual, they're compressed to make transfer times feasible, so the quality is not as good as I'd like them to be. But I do have the originals at much better quality - they could come in handy one day.

And the music on the first clip wasn't me adding some dramatic effect, they were testing the PA system!