Dean, I could never guess what pearls of wisdom you were going to impart, though it was very unusual that it didn't include a graphic description of where you are going to stick that blade of yours!
The city does now have some futuristic structures like The Gherkin and The Shard but, in my opinion, they would be more at home in Berlin or Dubai. I like the little historic gems that can still be found if one knows where to look. Check out The Blackfriar pub, for example here: http://www.nicholsonspubs.co.uk/theblackfriarblackfriarslondon/
Ye Olde Mitre is another one (est. 1546) and the land on which it stands used to be, technically, part of Cambridge: http://yeoldemitreholburn.co.uk/
There is still a "beadle" charged with keeping watch over the area: http://en.wikipedia.org/wiki/Ely_Place