The Castle Museum, previously known as Castle Station or Saginaw Post Office, in Saginaw, Michigan, United States is a historic structure on the National Register of Historic Places. Originally constructed as a post office and dedicated on July 3, 1898, the French Renaissance Revival architecture of the building is now home to a museum showcasing Saginaw's rich history. Available for school field trips, the Castle Museum offers students a great place to experience firsthand what the area was like hundreds of years ago through artifacts in our archaeology exhibit and the lumberjacks who invested in the vastly wooded region. Students will learn how this great city transformed from being the "lumber capital of the world" to an automotive manufacturing industry, when they view three floors of amazing displays and exhibits.