Walked around St Paul's a couple of years, and a lot further but close by I came across a store selling our sort of gear, I think it was Black's. The amount of floorspace was breath taking and if the cost was known that might be eye-watering. The money that our interest in the countryside earns to justify this and so many other outlets has grown since the days of little Arvon's shop in Capel Curig and the parent cobbler's shop in Bethesda came to mind.
Go to the end of the street and turn left and I think you will see where I mean.
Earlier that day I had been below Monument, found a garden with some old ruins, where a totally nude and very attractive woman wss being photographed. If you had been very fast, that might have made a good urban shot before she disappeared under a coverup.