Ancient black bottles of Bols the size of basketballs collect dust behind the bar, a lit candle deposits layers of wax on top of a ceramic beer tap and jenever barrels large and small line the wall on the opposite side of the room from floor to ceiling. Men and women of all ages sip classic spirits from tiny glasses or delicious Belgian brews at this tasting bar whose sand-covered floor has been trod since the 17th century. The liqueur casks aren’t just for decoration either. Local companies own them and their employees unlock them when they come here to unwind. Dutch snacks like cheese, sausages and bitterballen are also available.