Screw miniature train sets, these guys have created a minitature WORLD!

I've always liked trains so I think this is tooooootally cool!!  I had a bunch of train sets when I was a kid.  (Actually, I've been planning to start a new set for awhile now.  Just haven't had the time. I damn sure don't have the time to build one like this!)

These guys went NUTS!! 

I figured a big table set up in my barn now that I have the room.  This set though, would take up my whole place!! 

What's the biggest train set/race track set/ doll house/whatever (NO freakin' farmville!!) you ever built??