We treated my daughter and her family to a trip to the Science Museum today.  The feature there was the model railroad displays.  My grandsons have been exposed to model railroads by video (I Love Toy Trains and Thomas) and our own model railroad which we put up each year.  They checked out each table and took notice of all the different sizes of the trains that were on exhibit. The kids of all ages were excited to be there and asked lots of questions of the club members who put on the show.   One member told me that they arrived at 10am and left at 5pm on Tuesday setting everything up.  It was amazing.