Definitely a must see for any visitors to Pittsburgh. It is like riding the funicular in a Wes Anderson movie. Once up top, you get spectacular views of the downtown skyline, PNC Park, and Heinz Field. Really beautiful spot. Plus you can walk along the Mount Washington edge between the Duquesne Station and the Monangahela Station to take it all in, with a great mix of views. The walk is a bit hilly but only takes about 20 minutes. It's well worth the effort.