Enjoy a fright­fully good time at the Chicago Botanic Garden’s pop­u­lar Model Railroad Garden dur­ing Trains, Tricks & Treats on Saturday and Sunday, Oct. 24 and 25, from 10:30 a.m. to 4:30 p.m. In cel­e­bra­tion of Halloween and its clos­ing week­end for the sea­son, the Model Railroad Garden will be dec­o­rated with spi­der webs, ghosts, gob­lins, and pump­kins, as well as sea­sonal plant materials.