Washburn Observatory

The Washburn Observatory is an astronomical observatory located at 1401 Observatory Drive on the University of Wisconsin–Madison campus in Madison, Wisconsin, United States. Completed in 1881, it was a major research facility for about 50 years. Today, it is home to the UW-Madison College of Letters and Science Honors Program, while the telescope remains in use by students in introductory astronomy courses and the general public during open houses and viewings.

Source: Wikipedia