[Torby]

"The Garden That Jack Built is both a lyrical poem and a visual adventure. Illustrated entirely with photographs of model garden railroads in Northern California and Arizona, this is a great book to introduce children to the fun and excitement of model railroading. In this book you will find it all: shiny steam locomotives, a little red caboose, a roundhouse, a tunnel, several kinds of bridges, and... More"

(From the link he posted.)

Maybe they should get some of these in the Botanic Gift Shop.