Almost certainly modeled after the Temple of Hephaestus in Athens, this is about as archaeologically correct as Doric architecture gets in Pittsburgh. It is one of the few peripteral mausoleum designs you will find in Pittsburgh cemeteries, peripteral meaning that it has columns on all sides.
Fleming Mausoleum, Allegheny Cemetery
Eaton-Brown-Fleming Mausoleum, Homewood Cemetery
A lavish Doric temple, a miniature Parthenon or (even closer) Temple of Hephaestus, this mausoleum manages to convey the two often-conflicting messages “I had good taste” and “I was rich.”