Celebrate the grand opening of the Arizona Baseball Museum at the historic Lehi Auditorium on the Mesa Historical Museum’s Lehi Campus, debuting just in time for Spring Training 2026. This Opening Day celebration features a full day of festivities, including over 40 local arts and crafts vendors, live music throughout the day, special presentations and guest speakers, food trucks, giveaways, and free admission for all visitors. It’s an exciting opportunity to explore a brand-new museum space while enjoying community, culture, and local creativity.