This is a video from San Francisco supposedly taken only a few days before the 1906 earthquake and fire. It has been seen before, as it noted in the post over at BoingBoing, where I saw it, though this version is of much better quality. Also, the original video can be downloaded in high-quality since it’s in the public domain. If you want that, you can go on over to archive.org and get it.
I think it’s amazing to see how life was back in 1906. Note the almost-chaotic driving, the people hitching rides on seemingly random vehicles, the mix of horses, people, and cars. (Sorry, it’s a bit cut off, but you can see most of it.)
There is also an updated version from 2005 up on YouTube where the videographer takes the same trip. Or, even better, there is one with side-by-side comparison.