The Botanical Gardens/Zoo had the most wonderful model train set up! Covering quite and extensive area and a volunteer in a shed manning the switches, several trains made their way around sets that were fantastic! There was the Grand Canyon, complete with Colorado River rapids, dams, bridges and canyon overlooks - even the Bright Angel Trail with mules. There were towns from the 60s, wild west towns with saloons, hobo camps under the bridge, a wrecked train at the base of a high trestle and trains, trains, trains - criss-crossing each other and chugging and tooting as they went. It was terrific!