Drinking beer in the country that perfected it, in a centuries-old hall where the waiter just keeps replacing your glass until you cap it — this is the most authentic 'experience' in Prague and astonishingly cheap. The catch: the most famous halls (U Fleků especially) run tourist-priced with pushy add-ons, service is gruff by design, and it's smoky-feeling, meat-heavy and not for non-drinkers.