The Springfield Municipal Building is located in Downtown Springfield. Mayor Quimby has a fitness room there[1] and the Springfield Birdwatching Society holds its meetings there.[2]
Gallery[]
Mayor Quimby on a treadmill in an office
Hallway in Bart the Mother
Appearances[]
Episode – "Bart the Mother" 
Episode – "Mayored to the Mob" - Episode – "The Kids Are All Fight" (Flashback)