The St Paul Union Depot Company was incorporated in 1879 by the railroads serving St. Paul. The company was created for the purpose of building and operating a single, jointly owned railroad passenger terminal. The first depot opened in 1881. It was destroyed by fire in 1884 and then rebuilt. The depot received an addition in a 1900-1901 remodeling project.
The R.W. Lindholm Service Station in Cloquet was designed by American architect Frank Lloyd Wright. Completed in 1958, it was the only building concept ever constructed from Wright's utopian vision of a model American community called Broadacre City.