Saw The Sultan's Elephant in London in 2006 and it was one of the most spectacular and enjoyable things I saw whilst living there. Elegant and awe-inspiring.
I suspect the spider will be every bit as good - it's 15m high and will 'walk' down the streets...
Though I suspect if you didn't know what it was, and were sitting in the office as it came down the wall, a small heart attack would be the order of the day...