The Library Bar

You're stepping into the kind of place that feels like a members' club but actually welcomes walk-ins—all dark wood panelling, leather banquettes and the sort of attention to detail that makes you sit up straight without meaning to. The Library Bar is tucked into The Lanesborough on Hyde Park Corner, and it's got that rarefied atmosphere where everyone seems to know what they're ordering and the bartenders move with purpose. The cocktails are technically excellent, the sort of thing you can tell someone spent actual time thinking about rather than just muddling fruit into spirits.