The former residence of Pittsburgh industrialist Henry Clay Frick, it now stands as a museum displaying European paintings, bronze sculptures, 18th century French furniture, and more. Visitors can stroll and admire the amazing art pieces without the nuisance of crowds like NYC's other major art museums.
The Frick Collection houses an incredible collection of paintings and sculptures - check out the oil painting of President George Washington in the library. It's not your typical museum, but their small yet impressive collection (from Degas, Goya, and Greco among others) is one to see.
Take advantage of the free audio tour device, included in the price of admission.