Beyond United and City, Greater Manchester is the mecca of football

Manchester averages more than 122,000 spectators between Manchester United's Old Trafford, pictured, and Manchester City's Etihad.

Manchester United and Manchester City may dominate, but there are eight professional football teams in Greater Manchester. Britain's second-biggest conurbation, of 2.5 million, is a football city that also boasts numerous semi-professional sides playing to average home crowds as high as the 2,000 that attend the games of FC United of Manchester, the breakaway club that formed after the Glazer takeover of Manchester United in 2005. They're about to move into their own new, £6.3 million, 5,000-seat…