Allegheny’s own Carnegie Hall was built in 1890, right next to the library Carnegie gave to the city a year earlier. The library building still stands, though the library has moved a few blocks up Federal Street; the music hall is now used as the “New Hazlett Theater,” a venue for miscellaneous performances. The library and music hall were among the very few buildings spared when the heart of Allegheny was demolished in the 1960s for the “Allegheny Center” project, which was either an ambitious attempt at creating the modern ideal of a city or an audacious stab at the heart of Pittsburgh’s conquered rival, depending on how you look at it.
Carnegie Hall is a short walk from the North Side subway station.
Addendum: The architects were Smithmeyer & Pelz.