Tours available Thursdays-Mondays during summer months, Tickets available ONLINE ONLY. Click HERE for more information and to reserve your tour. Limited tickets and dates available.
AFTER THREE AND A HALF YEARS OF DORMANCY AND RESTORATION WORK, WE ARE OPEN! Yerkes Observatory, the birthplace of modern astrophysics, is an architectural masterpiece on fifty acres of Olmsted-designed ecological splendor. Since 1897, Yerkes has been the home and school to famous astronomers, Nobel prize winners, and renowned scientists but we're now open for public tours five days a week for the first time. The world-famous Observatory's beautiful location in Williams Bay, Wisconsin is only fifteen minutes from downtown Lake Geneva. We are on a new voyage under the stewardship of Yerkes Future Foundation, a nonprofit 501c3. All proceeds go to the restoration, preservation, and programs of this international landmark of astronomy, architecture, and landscape design. Don't miss these behind-the-scenes, out of this world, restoration tours! For further information, please visit our website.