The Great Western - JD Wetherspoon

You walk into this place and immediately forget you're in a Spoons. The soaring ceilings, ornate period features, and sheer scale of this converted railway building make it feel more like a Victorian gentleman's club than your average chain pub. Perched right on St Mary Street in the heart of the city centre, it's where everyone from early-morning commuters grabbing breakfast to late-night revellers ends up at some point. Yes, it's still a Wetherspoons with all the usual suspects –£2.50 pints, curry club Thursdays, and that distinctive carpet. But the architecture does the heavy lifting here. The breakfast crowd knows what's up, piling in from 8am for proper full Welsh breakfasts at prices that make you wonder how they turn a profit. Come evening, it transforms into Cardiff's most democratically priced drinking hole.