Now known as Two PNC Plaza, this building held an interesting architectural record. It was designed by Natalie de Blois (or DeBlois; old Pa Pitt sees it spelled both ways, and he is not willing to pay a spirit medium to contact the architect) for the firm of Skidmore, Owings and Merrill, and when it opened in 1974 it was the largest building in the world ever designed by a woman. A block of Oliver Avenue was eliminated to make room for this skyscraper, but Oliver Avenue was never much of a street anyway.