I've been trying for months now to find a metafilter post from a year or two back. It was MLYT, to someone who made short video pieces - as I recall, a lot of them were of carefully assembled stacks of things falling over.
I think the creator was knocking them over, in most cases. And there may have been some that were not falling-related.
I'm sure the videos were mostly filmed outdoors in urban areas, and I have a strong feeling that it was in Asia, maybe Tokyo?
The post may have actually only linked to one video, but the person had made many. I really can't remember anything else about them but would love to find it again, and all manner of keyword searches has failed me.
I also hope that MeTa and not AskMe is the right place for this...otherwise my apologies in advance.