Sky Backstage at The O2

You're standing in one of those rare spots in Greenwich where you can actually feel the energy of a major events space without being crushed by thousands. Sky Backstage sits above the O2's main floor, giving you sightlines most punters will never get—whether there's a gig on or not. It's the kind of place where the bar staff know their way around a decent cocktail, the crowd's a mix of tourists and locals who've worked out you don't need to queue for hours to enjoy the space, and everything feels deliberately put-together without trying too hard. The vibe shifts depending on what's happening downstairs, but that's rather the point.