Twickenham Stoop

Not the main Twickenham stadium, which is just across the road.  This is the home of the Harlequins, who we were here to see playing London Irish (who won).
My girlfriend's company had got some boxes, which was a great way to experience this (as it was absolutely freezing when we sat outside).

https://en.wikipedia.org/wiki/Twickenham_Stoop