This is a pub with a perfect location. I suppose every visitor of Prague intends, sooner or later, to visit the Prague castle. Well, this spot is only a 10 minute walk from there.
The area of the Castle is quite big and it takes some time to see. A quick refreshment afterwards seems to be very convenient then Cerný vul (Black bull) is an old-fashioned Prague pub, but don’t expect any touristic fancy stuff – you will only find one room with narrow wooden benches to sit and heavy wooden tables to put your beer down. However it is said to serve the best dark beer in Prague and its atmosphere is unique.
Around lunchtime you will find here at least several people with suits and ties – most probably employees of the near Ministry of Foreign Affairs coming to have their meal. In the evening it usually gets a bit crowded (by locals mostly) and it may occur that there won’t be any more places to sit. You can still have one “nastojáka” (= on the feet).
As for quality of the service, the beer is simply great here. The staff consists of two usually kind of grumpy guys, but they simply fit there. The variety of meals isn’t very wide but they have all you need to eat with a beer (sausages, pickled Camembert, toasts…). I know this is not a healthy diet but it is delicious and hungry you won’t be!