The Stone Arch Bridge is an iconic part of the Minneapolis landscape. But it hasn't always been just for looks and bicyclists and pedestrians. MN90 Producer Andi McDaniel discovers the hard-working past of this famous Minneapolis landmark. Includes an interview with David Stevens of Mill City Museum.

Frederick Spangenberg House, 1929.

William Spangenberg seated with friends in a hammock, with his parents Anna and Frederick in the doorway behind him, c.1900.

William and Frederick Spangenberg Jr. with family and friends, c.1900.

Family of Frederick Spangenberg Sr., c.1900.

Frederick Spangenberg Sr. and family, c.1900.

Anna Sontag Spangenberg, wife of Frederick Sr., c.1900.

Frederick Spangenberg Sr., c.1900.

Clock shelf, Eastlake style, used by the Spangenberg family, 1890s.

Portrait of Frederick Sr. and Anna Spangenberg in a frame, c.1868.