The classic moment of the week came when we were looking around a ridiculously overpriced "penthouse" (attic) in Kensington when we chanced upon the "dining room". There was a 10in-wide metal beam running bang through the middle of the room at about chest level. The agent, seeing the puzzled looks on our faces said jovially, "... Erm, yah, that beam is holding the walls up and cannot be removed. I think it's rather fun though, don't you?"