Knock is a fantastic restaurant and piano bar in Philadelphia. Located conveniently in the downtown area, this establishment is ready to host your next time out on the town. Reservations are recommended, as this establishment always tends to fill up with patrons, no matter what time of day it is. That's a sure sign that they're serving up quality, there's no doubt about that. Cocktails are served every day, and the specials that you find will undoubtedly have you returning time and time again. The talented piano players raise the roof each and every night, playing classic hits for you to sing along with. A great time is waiting to be had at Knock!