The most entertaining displays I've ever seen were up in North Queensland where one house owner would construct two-storey scenes in fairy lights. The themes were not Christmassy — they usually depicted a major event from that year. His illuminated interpretations of the Olympic Games and the Bicentennial celebrations were loved by all. The Gulf War … not so much.
Here's a corner of the first display. I couldn't get a photo of the whole garden because someone had parked a car right in front of the house. I must go back to find out what's under the blue wrap. Any guesses?

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* Not the most imaginative title, but accurate, I think you'll agree.