The folks at Bored Panda compiled some very interesting long-exposure pictures seen at different photography sites around the internet, These shots are made by keeping the camera shutter open and allowing the single frame to "see" things move instead of just capturing one static image.
Although I shot a few of these kinds of pictures -- some inadvertently -- when I worked for the newspaper, I was shooting with regular film. I'm not 100% sure how the technique works with digital photography without the image just turning into a video. But someone obviously knows, and thus we have some cool stuff like this:
Don't know why California is spending stacks of cash on high-speed rail when it appears that Budapest already has warp-drive technology on its trains.