Around four to five years ago we saw an illusion on Windsor/Eton Bridge, whereby a (headless) figure appeared to sit in a large chair, smoking a fag. No head ! It was there most days, and we couldn't work out how it was done. Anyone else seen this illusion and if so; how do you think it was done? And no, we weren't bladdered and it was there. Windsor Bridge or Windsor Town Bridge, is a road bridge over the River Thames between the towns of Windsor and Eton in the English county of Berkshire. It now only carries pedestrian and cycle traffic, and crosses the Thames just above Romney Lock.