This historic, University of Denver observatory was founded in 1894, and it has been used to explore the sky ever since. In fact, astronomy has been a continual field of study at the University of Denver since 1880...a full 140 years! The observatory is noteworthy for its historic, Romanesque style architecture, and it is convenient to get to, as it is located right in the city of Denver. During their first quarter moon Saturday evening Open House events, you can gaze through the telescope for just $1.