If ever the term "hidden gem" applied it would be for the Cafe at the Frick. We were in Pittsburgh for the weekend and saw an article in the paper about the emergence of fine dining at museums. The article discussed the Cafe at the Frick so we decided to go. Lunch was al fresco with a garden of herbs surrounding. My salmon and my wives caesar chicken salad were both delicious. The server was smart and helpful. The weather was perfect.