I realize this is a bit of a strange question.......My friend who I'll be going with to WDW in October just called.He heard there is a tour you can take at Magic Kingdom underground around the Main Street USA area.Has anyone ever heard of this,and if so,any links to info............Would we need to book in advance,or would that day be okay,how much does it cost?If anyone knows anything,I'd be thrilled to hear from you.Thanks for your help,I do realize this is a very weird question!!