The statue is cast from the famous sculpture completed by Michelangelo in 1504. It depicts a young David poised to kick giant Goliath's ass. The original is located in Florence, Italy and is considered to be one of the finest sculptures in the world.
At the time of it's erection (that's right...) the statue was rather controversial. A local Baptist minister wrote a letter to the editor calling the statue "not art but sin." He predicted: "In the years to come, we can expect to see on the streets of Sioux Falls people going naked. We can expect immoral acts in the parks. Don't be surprised if God doesn't bring a flood or a tornado, or strike the statue with lightning. God will judge this city."