Angel Hotel Cardiff

You'll feel properly grand walking into this Victorian hotel bar, with its high ceilings, marble columns, and the kind of ornate décor that makes you want to order something stronger than a pint. The cocktail menu takes itself seriously – think perfectly balanced classics rather than Instagram-friendly concoctions – and the staff know their way around a proper Old Fashioned. It's the sort of place where Castle Street's business crowd decompress after work, and where you'll spot the occasional theatre-goer from the nearby New Theatre nursing a pre-show gin. The 24-hour service means you can satisfy late-night drinking urges, though the atmosphere shifts from sophisticated evening affair to something more utilitarian in the small hours.