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Yerkes Observatory, Williams Bay, WI
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Yerkes Observatory

Yerkes Observatory is a museum in Williams Bay, WI, part of the Chicago guide. Cost: $25 to $50.

373 W. Geneva Street · Williams Bay, WI

Why you should go…

Yerkes Observatory is a historic astronomical research building completed in 1897 in Williams Bay, Wisconsin, now operated for public education and tourism. Guided tours such as the Space and Spaces Tour cover the building's astronomy, architecture and restoration history, while the Hidden Spaces Tour takes visitors through behind-the-scenes areas including winding staircases and subterranean darkrooms. Evening Night Sky tours offer small-group access to the Great Refractor and a 24 inch reflecting telescope, weather permitting.

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  • #science
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  • #history

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