The tower of Cascade Hall, built in 1883 on what is now called the Oregon State Hospital campus. It is the main entrance to the "J" building, believed to be the oldest, intact building in the city. The 1975 film, One Flew Over the Cuckoo's Nest, winner of 5 Academy Awards was filmed on this location. The controversial and crumbling Oregon State Hospital, much of which is in disrepair and no longer used for patients and parts of which were under discussion for demolition, was added to the National Register of Historic Places on March 6, 2008. Read more.