Mr. Venturi spent years teaching at University of Pennsylvania and other Ivy League schools, and often spoke in a mumbly academese. Even though he championed "vulgar" and vernacular buildings, like roadside drive-ins and Vegas casinos, you had to be steeped in the academic world to appreciate some of his architectural jokes and references. One reason he moved his architecture firm from 16th and Pine Streets in Center City to Manayunk in 1980 is because it would be located on Main Street. He had already turned the phrase, "Main Street is almost alright," into a famous rallying cry to celebrate the unlikely juxtapositions found on American streets.