"Altgeld's castles" are buildings in the Gothic Revival style in five Illinois universities, all built at the initiative or inspiration of Illinois Governor John Peter Altgeld. During his term as governor, Altgeld expressed certain opinions on how buildings should be erected in the state of Illinois. In his second biennial message to the state legislature, he discussed how buildings were being constructed without consideration for their outward appearance. He stated that it was time for buildings to become more aesthetically pleasing in addition to being functional, and he suggested the "Tudor-Gothic style" as the most inexpensive way to do this. Consequently, several of the state universities in Illinois erected buildings which resembled castles in his honor. College folklore states that these buildings have aligned corridors and rooms so that they could all be “put together” to create one large building, but there is no evidence to support this rumor.

Illinois State University (ISU) is a public research university in Normal, Illinois. Founded in 1857 as Illinois State Normal University, it is the oldest public university in Illinois. The university emphasizes teaching and is recognized as one of the top ten largest producers of teachers in the US according to the American Association of Colleges of Teacher Education. It is classified among "R2: Doctoral Universities – High research activity".

The university's athletic teams are members of the Missouri Valley Conference and the Missouri Valley Football Conference and are known as the "Redbirds," in reference to the state bird, the cardinal.

On the campus of Illinois State University, Governor John Peter Altgeld ordered the construction of a castle-like building. This building, now known as John W. Cook Hall, was once known as “Altgeld’s Folly.” This is because when the original plans were drawn up for the construction of the building, Governor Altgeld rejected them because he wanted a building that looked more like German castles along the Rhine river. In 1898 the building was completed by local architects, Miller & Fisher, who took some creative liberties in the castle's construction. Though the building contains turret styles with towers and battlement like Governor Altgeld wanted, the architects also added their own flair by using Bedford limestone.

In the design for the building, it was made to be fireproof, which is why the University decided to move the library into it. The building was also originally used as a gymnasium and it was stocked with all the newest exercise equipment. It had rope ladders, rings, slippery poles, parallel bars, and weights. There were also plans to add a bowling alley and swimming pool, but these plans were eventually abandoned.

After being a gymnasium for so long, the building eventually came to also house the University radio station, WGLT. More recently, though, Cook Hall has been remodeled to become the School of Music building. The building holds practice rooms, rehearsal halls, and many classrooms. Cook Hall is the only building on the Illinois State University campus that is on the National Register of Historic Places.

John W. Cook Hall, or Cook Hall, is a building which resembles a castle on the Quad of Illinois State University in Normal, Illinois. Cook Hall, named for the university's fourth president, has been listed on the National Register of Historic Places since the winter of 1986.

Cook Hall is one of "Altgeld's castles": it was designed toward the end of the administration of Illinois Governor John Peter Altgeld. Altgeld was a German native who favored Gothic Revival architecture.

The building's original purpose (as well as its name) was "Gymnasium". It was eventually converted for other uses as larger gyms were constructed on campus. It currently houses the School of Music.

Charge

- The building is used by a university

- Interior is closed for visitors

https://illinoisstate.edu/