Although I had heard the name "burning man", I had no idea what it was until I read a very funny and heartfelt article in GQ by Wells Tower. When I then googled Burning Man and saw some images, I had to go.
As it says on the Burning Man site, "trying to explain what Burning Man is to someone who has never been to the event is a bit like trying to explain what a particular color looks like to someone who is blind"