. "The Minnesota Discovery Center, formerly known as Ironworld Discovery Center and originally as the Iron Range Interpretive Center, opened in the 1977 outside Chisholm, Minnesota, United States. It showcases northeastern Minnesota's \"history and future\" and includes a museum, entertainment venue, research library and park. The site offers various community programs and events including Polka fests, concerts, and fairs."@en . . "Minnesota Discovery Center"@en . . .