Trolls live under bridges

So I dug out my 30 year old Olympus Trip, worth all of £3 on eBay, and it still works. I'm quite pleased with its results. We are under the span of the new Blackfriars Bridge today and if you look at the tiles, they have reproduced the plans and drawings of the building of the original bridge. Chances are, even if you know the place, that you have just walked straight through. Stop and have a look, it is fascinating..