LED Mag has an article about the various Christmas displays around the world (well, ok, a few of them), with a few pictures of the work. I used to live in Columbus, OH, which is featured in the article – the Columbus Zoo has a display of LED Christmas lights – somewhere in the neighborhood of over 3 million LED’s – that they just recently switched over to ALL LED, saving $16,000 in energy costs, and providing better color (for those of us who care about that!).
One of the most impressive displays is located in Kuwana, Japan at the Nabano no Sato park. 4.5 million Christmas LEDs make up the display, and the images are marvelous!