From the exhibit page:
"A playfully interactive exhibit, “Open House: If These Walls Could Talk,” brings to life the adage “if these walls could talk” by using a single, existing house—in the “Railroad Island” neighborhood on St. Paul’s East Side—as a window into the daily lives of people of the past.
Stories of families, from the first German immigrants through the Italians, African-Americans, and Hmong who succeeded them, are told through rooms representing different eras of the house. Visitors become detectives, piecing together lives of the families who made this house their home."http://www.mnhs.org/exhibits/openhouse/index.htm