For Pittsburgh I found a stone detail from the Allegheny County Office Building and used it as the basis for the Pittsburgh Soccer Club logo. The team is fairly old founded in 1910 and plays in Point Park.
They have played most of their existence in America One except for a stretch in the Premier League from 1978-1988. They do have one piece of hardware: the 1949 US Open Cup.
In addition to the architectural detail, the flag also has heavy influences on the team crest. The team's uniforms are of course black and gold however they bring some of the blue and white checkers into the primary and a whole lot in the change kit. The primary full center stripe comes from the city flag.
Location: Pittsburgh, PA / Nickname: Steel / Stadium: Point Park / Founded: 1910