Valencia, Spain, and other Spanish towns and cities I'm sure, has this festival every March called Fallas. I'm not Catholic, and it is to honor St. Joseph, so maybe that's why I've never heard of it. It looks pretty cool, I came across some pictures at http://miradasymomentos.blogspot.com/, so I thought I would check it out further.
I was impressed by the flair and detail of the sculptures, obviously created with much love and dedication, but what impressed me more was that they're burned at the end of the festival. A sort of sacrifice. Pretty pagan if you ask me, but hey, any excuse for a party.