Some of you know that one of the things I am passionate about is Scottish Country Dancing, and that I also teach it. (I, half-jokingly, posted instructions for the dance Wild Geese to the Brigid poetry slam.)
Here is a video (link here) to a group of very ordinary dancers doing an amazing thing -- setting a world record for the number of people dancing together. These are all dances I've done, and the Eightsome Reel is one of my favorites, and which I haven't had the chance to dance in much too long.
Note the intergenerational and social aspects of this! :) Also note the really amazing St. Andrew's Cross that the combined sets make when viewed from above.
And here is a video (link here) to another group of Scottish dancers (country and highland) doing something very clever and very silly...