The Prime Rib is a romantic and delicious restaurant. The menu consists of prime meats, fresh seafood, and thick chops. Everything about The Prime Rib was intended to make every occasion feel like a special one. The tuxedoed waitstaff, their insistence on a dress code, top quality food, and live piano and bass music nightly makes this goal come true. The Prime Rib of Philadelphia is located in the historic Warwick Hotel, one block east of Rittenhouse Square and opened in 1997. Leopard-print carpeting, live jazz, stiff cocktails, and comfy leather chairs complete the retro atmosphere.