*Please Note: Yerkes Observatory building is currently closed for restoration. The grounds are expected to be open for visits in summer, 2021 however. Yerkes Observatory, the birthplace of modern astrophysics, is a majestic, iconic building with a rich history of science discovery and education. Since 1897, Yerkes Observatory has welcomed astronomers, astronauts, Nobel prize winners, scientists, educators and the public to its beautiful location in Williams Bay, Wisconsin. Now Yerkes Observatory is entering a new chapter in its grand history under the stewardship of the Yerkes Future Foundation. YFF is a not-for-profit organization whose goals are the restoration of the famed Observatory, revitalization of its Olmsted landscaping, improvement of its equipment and re-establishment of the facility as a research and educational outreach center. For further information please visit our website.