The place has changed a lot since I was delivering there Sandy, the drivers knew where they were going & that was it, the only time I used the weight of the HGV but it was excepted by all, as that was the only way you could get out of junctions & the likes, sorry for interrupting your post.
9 for me. (I knew most of them but a bit of guesswork was required for a couple).
I'm unsurprised that Londoners don't know London. I worked with a group of Londoners right alongside the London Monument. Several of them asked me what it was and none of them had even heard of the Great Fire of London!