Carnegie Science Center
There's so much to see at this 3700sq m-plus centre including a planetarium, miniature railroad exhibit, a World War II submarine and a health-science centre. But be warned, on Steelers home-game days the centre either closes for the day or closes early.
Duquesne Incline and Mt Washington
These restored wooden cable cars date back to the late 1800s when they transported immigrant workers from workplaces along Pittsburgh's rivers to their homes on Mt Washington. They still transport residents but are also a great way to view Pittsburg's skyline. The top station has an observation deck.