This gigantic sand castle—which was endorsed by the Guinness Book of World Records as the world’s tallest—was partially constructed by five CAT earth movers, with humans taking care of the creation’s finer details. It’s of course all a big publicity stunt for CAT and its equipment, but anyone who’s ever found themselves staring at a busy construction site will certainly appreciate the finale here when the giant machines turn on their creation and bring it crumbling down. (Source)