With the threat of nuclear war in mind, a Douglas County family built a stone fortress made to be self-sufficient. Reporter Jimmy Lovrien learns about the home's past and what could be in store for its future. You can find the column for Northlandia, which features articles, photos and sometimes video, at duluthnewstribune.com/topics/northlandia. The Northlandia podcast is a product of Forum Communications Company and is brought to you by reporters at the Duluth News Tribune.  If you enjoy this podcast, please consider supporting our work with a subscription at duluthnewstribune.news/podcast. Your support allows us to continue providing the local news and content you want.