May 18 and 19, 10 am-5 pm, throughout the city. Explore the buildings that tell the city’s story. Northeast locations include the Hollywood Theater, Gustavus Adolphus Lutheran Church, Compassionate Ocean Zen Center, Architectural Antiques, Eastside Maintenance Facility, Kramarczuk Sausage Co., Ard Godfrey House, The Main Cinema, St. Anthony Hydroelectric Plant. Some locations are open both days. Free, but some venues require tickets. See https://www.doorsopenminneapolis.org.