Sioux Falls Light and Power Hydro Electric Plant - Credit: Wikimedia Commons
The Sioux Falls Light and Power Hydro Electric Plant, formerly the Northern States Power Building, is a historic building in Falls Park in Sioux Falls, South Dakota. Originally built as a hydroelectric power plant on the Big Sioux River, it now houses the Falls Overlook Cafe. It was listed on the National Register of Historic Places in 1993. With Read more on Wikipedia
Source: en.wikipedia.org