Toon Town Architecture

It must have been interesting drafting up the blueprints for Mickey's Toontown. With hardly a straight line in sight, what baselines were there to go off of?  This land of the cartoons seems more sculpted than constructed, and that's pretty much the point.  Why would the zany land of the animated follow conventional physics and human order?  Of course everything would be bulging and curvy and wild.  It only makes sense... that nothing makes sense!