I can’t remember when I last spent a few hours in a wine bar, but a couple of friends suggested Vagabond near Battersea Power Station and it was a mappy experience. It’s an industrial style bar with several maps showing the regional distribution of the wines on offer.
But the thing that distinguishes Vagabond is its wine dispensers, you can have little tasters, medium or large glasses of nearly 100 wines. Well worth a try.