Zach's latest obsession is trains. He loves Thomas and anything else train related. He will happily follow Brooke around the house choo-chooing and dancing along. I lit upon a good idea a few months ago and took him to ride Trax which is the Utah light-rail system.
Even though Trax looks nothing like Thomas, Zach loves it. There is a Trax stop right by the Children's Museum so Zach's favorite activity is to take Trax to the Children's Museum (Thanks to his Grandma Marsh for the membership) and play for a few hours and take Trax home.