Hampstead Jazz Club

You'll find yourself on a quiet Hampstead backstreet, pushing through the door of what looks like it could be anything, but inside is one of London's most unpretentious jazz venues. The room's small and dark in that way that makes you feel like you've stumbled into someone's living room—except there's a proper stage and a bar pouring decent drinks. The crowd's a mix of local regulars who've been coming for years and jazz fans who know what they're after, which means you get actual silence when the musicians are playing rather than braying conversation.