The giant turtle on the side of Century Avenue in Dunseith, North Dakota, was erected in 1982 to pay homage to the nearby Turtle Mountain State Park. The 18-foot-tall tortoise was built from 2,000 old wheel rims, and has been known to sport a festive Santa hat during the holidays. Address: Junction of Highways 3, 5 and 281, Dunseith, North Dakota
Porter Sculpture Park is located just off Interstate 90 in Montrose, South Dakota about 25 miles west of Sioux Falls. It is on the the South Dakota Drift Prairie. There are many weird sculptures placed in Porter Sculpture Park.