LUKE AIR FORCE BASE The only active-duty F-16 training base in the world. Keep an eye on the sky for a free show. www.luke.af.mil. Glendale Ave. & Litchfield Rd., Glendale, 623.856.5853. MCCORMICK STILLMAN RAILROAD PARK Dozens of historic railroad cars, a steam-powered engine and detailed model railroad exhibits reveal Arizona’s train-tracked roots. Take a small-scale train ride through the park and visit the $3.6 million “train shed”— charmingly old-fashioned-looking but tricked-out with modern technology. Free admission. www.therailroadpark.com. 7301 E. Indian Bend Rd., 480.312.2312. RAWHIDE WILD WEST TOWN Mock 1880s Western town with period shops, galleries, entertainment, goldpanning, horseback riding, steak dinners and activities for kids. www.rawhide. com. I-10 & Wild Horse Pass Blvd., Chandler, 480.502.5600. SCOTTSDALE DOWNTOWN’S HISTORIC DISTRICT Begin a self-paced walking tour of historical points-of-interest at the Scottsdale Historical Museum, which happens to occupy a 1909 two-room schoolhouse. More than a dozen storied sites along neighboring sidewalks are identified by sidewalk decals. www.scottsdale museum.com; www.scottsdaledowntown.com. Scottsdale Civic Center Mall, 7333 Scottsdale Mall.