Jenna gets to the top of St Paul's Cathedral and remembers she doesn't like heights. Unfortunately, by the time she realised, we were already on the one-way stairs, so there was no going back. Still, the view was worth it, as this photo shows. In the distance is the gherkin building, and Tower 42 (or whatever it's called). This photo was taken just after another tourist patted themselves down wondering where they'd put their semtex and I'd explained to Jenna what that was.