I gave you-all a clue when I mentioned that the University went out of business in 1917. What major event happened in the 1917 time frame? That was the time from when the United States entered WW-I.
Westminster University had always accepted men and women students. At the beginning of the 1917 school year, they decided to limit enrollment to males. With the entry of the U.S. into WW-I, the entire male student body was called to serve in the military. WIth no students, the Universtity closed. It never opened again.
The University building was built in the form of an ancient European castle. It sits on a hill in the Denver area. It is a historic landmark, and is now used by KPOF (Point of Faith) radio station for it's offices and broadcast studios. KPOF is a Christian radio station operated by the Piller of Fire denomination.
AS a point of interest: I am friends with a former SDA Disk Jockey for KPOF, who lived in the castle when he first got married. Is oldest son was born while he lived and worked there.