BFI Balcony Bar

You're walking through the brutalist concrete of the Southbank Centre, and suddenly you've got access to a balcony bar that most people don't even know exists. It's the kind of spot where you can actually see the river properly—not fighting for a glimpse through crowds. The bar sits inside the BFI building itself, so it's got that cultured, slightly grown-up feel without being pretentious about it. Grab a drink, watch the light change on the Thames, and pretend you're about to head into a 6pm screening of some Truffaut film you've been meaning to catch.