NEW YORK (Reuters) - For New York City mayoral hopeful Anthony Weiner, the road to City Hall leads through Pittsburgh. Weiner, the candidate who infamously resigned from the U.S. Congress two years ago in a sexting scandal, unveiled a video announcing his mayoral candidacy and a campaign logo on his website on Wednesday. The logo is written in blue and orange - the colors of Weiner's beloved New York Mets baseball team. But the image of the skyline that forms its backdrop, while similar to iconic images of New York's Brooklyn Bridge, is actually that of Pittsburgh's Roberto Clemente Bridge. ...