Ok, so the way this is going to work is that I’m going to post one question a day for the next 10 days, all built around a common theme. I think that answering in the comments is the simplest way to handle the answering problem, though I guess that I’m going to have to take it on faith that no-one’s cheating and/or looking up the answers on Google.

I’m going to try to start with the easiest question and then work my way up in difficulty, though, as has been pointed out in the past, I’m not necessarily the best judge of the difficulty of some of my questions. At least the theme should be pretty obvious. Anyway, here’s the first question:

Where is this sign?