Towering over exit 72 on Interstate 94 in western North Dakota is a giant metal sculpture of geese in flight. The size of a ten-story building, Geese In Flight has an entry in the Guinness Book of World Records as the world’s largest scrap-metal sculpture. It’s just the beginning.
In 1991, the United States and Soviet Union signed the START treaty, and the 150 Minuteman nuclear missile sites in South Dakota were decommissioned. Almost all were destroyed, but the treaty allowed for representative sites to be preserved, and so Delta-01, and missile silo Delta-09, were turned over to the National Park Service for preservation.