Science & Nature Centers Southeast Wisconsin

Yerkes Observatory

Address

373 W Geneva St - Williams Bay, WI 53191

Phone

262-245-5555

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About Yerkes Observatory

Yerkes Observatory, home to the world’s largest refracting telescope, stands as a monumental landmark in both astronomy and architecture. Designed by Frederick Law Olmsted's firm—famed for Central Park, the U.S. Capitol grounds and many other iconic landscapes—the observatory sits on fifty acres of lush grounds overlooking Geneva Lake and has been a cornerstone of American astrophysics since its 1897 inception.

In its latest chapter, Yerkes Observatory shines as a beacon for current and future generations of scientists and artists, offering a space to discover and interpret the universe. Visitors can stroll through the meticulously designed landscape, explore the Beaux Arts and Romanesque architectural masterpiece, and follow in the footsteps of astronomical greats.

Prepare to be amazed as you experience the wonder that has captivated visitors and astronomers for over 125 years.

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Museum/Gallery Type

History

Physical and General Mobility

ADA-Compliant Bathrooms

Accessible Parking

Highlights This Location is getting noticed

From local favorite to statewide standout, this remarkable destination is earning well-deserved recognition. See the highlights below.

Located In Southeast Wisconsin

373 W Geneva St - Williams Bay, WI 53191

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