Henry Hornbostel imagined filling the University of Pittsburgh’s hillside site with classical temples, making a new Pittsburgh Acropolis that would be the envy of the intellectual world. The plan was never completed, because classical architecture went out of fashion too soon, and because it was supplanted by the even madder plan of putting a university in a skyscraper. But several of the classical buildings that remain on Pitt’s campus were meant to be part of this Pittsburgh Acropolis.

The image comes from an advertisement for Ruud water heaters, the amazing improvement in hot-water supplies that didn’t require servants to tend to a boiler.