St. Ann's Cathedral - Credit: Wikimedia Commons
St. Ann's Cathedral is a Catholic cathedral in Great Falls, Montana, United States. Along with St. Patrick's Co-Cathedral in Billings, Montana it is the seat of the Diocese of Great Falls-Billings. In 1991 it was included as a contributing property in the Great Falls Northside Residential Historic District on the National Register of Historic Places. Read more on Wikipedia
Source: en.wikipedia.org