For our wedding anniversary, my wife and I took a trip out to the Virginia countryside for a glass-blowing class.  We took several pictures (not including sticking my hand too far into the over-1000-degree cauldron), but none nearly as stunning as Flickr user Karon‘s shot of a demonstration at the Maryland Renaissance Festival.  The heat coming off the liquid glass obscures the spectators and reflects some psychedelic colors off of the finished works.  EXIF.