Celebrate one of the city’s most iconic landmarks with train-shaped cookies, a model train exhibit — and of course Big Mike the historic Union Pacific locomotive — as the Boise Depot’s turns 91. Built in 1925 and fully restored in 1990, the Depot became part of Boise City Parks and Recreation Department in 1996. Today, with its stellar view of the city, it is a popular spot for community events and weddings. Take the kids and enjoy a free tour with historian Eriks Garsvo at 11:30 a.m. and 1 p.m. (Register for a tour at Eventbrite.com.)
11 a.m. to 5 p.m., Sunday, April 17, Boise Depot, 2603 W. Eastover Terrace. Free.