The Mon incline is a great way to experience the best views of Pittsburgh from Downtown to the East End.
The inclines are part of the Port Authority of Allegheny County and you can get on with a bus pass. Get on at Station Square and take it up to Grandview Street, where you will find several lookout points on the top of the mountain. Finish up your Mt. Washington experience with a short stroll to Grandview Bakery on Shiloh Street, then back on down the mountain to downtown.
Both nighttime and daytime visits yield amazing views.