The Adler was the first planetarium in the United States and is part of Chicago's Museum Campus, which includes the John G. Shedd Aquarium and The Field Museum. The Adler's mission is to inspire exploration and understanding of the universe.
The Adler Planetarium opened to the public on May 12, 1930. For its design, architect Ernest A. Grunsfeld, Jr. was awarded the gold medal of the Chicago chapter of the American Institute of Architects in 1931. It was declared a National Historic Landmark in 1987.
The Adler is home to three full size theaters, extensive space science exhibitions, and a significant collection of antique scientific instruments and print materials. In addition, the Adler boasts the Doane Observatory, one of the only research-active, public urban observatories.
An outdoor stone sculpture, America's Courtyard by husband and wife Brazilian artists Ary Perez and Denise Milan, was installed outside the Planetarium
The Webster Institute for the History of Astronomy cares for, studies, and interprets the Adler's collections. Since the opening of the Adler, the collection has grown to approximately 8,000 objects, books, works on paper, archival collections, paintings, and photographs. The Adler boasts the largest and most significant collection of historic scientific instruments in the Western Hemisphere, as well as one of the most significant collections in the world.
According to wikipedia