Montana State Training School Historic District - Credit: Wikimedia Commons
The Montana State Training School Historic District was listed on the National Register of Historic Places in 2014. It is a complex of buildings set around an oval green and a central administrative building named Griffin Hall. Griffin Hall was built in 1912 and is the oldest building. Many former buildings of the complex were demolished in the 1970s and 1980s. Read more on Wikipedia
Source: en.wikipedia.org