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Yerkes Observatory

Closed Now: 12:15 pm - 3:15 pm
Open today: 12:15 pm - 3:15 pm
Review Highlights
Amazing and Historic Yerkes Observatory

When I heard that the Yerkes Observatory was about to close we decided to make the trip to Williams... read more

Reviewed 3 days ago
Chicago, Illinois
Beautiful grounds. See it before it closes.

We loved grounds, which are beautiful as well as this magnificent building. We took the tour... read more

Reviewed 5 days ago
Sue B
Read all 317 reviews
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Traveller Overview
  • Excellent81%
  • Very good16%
  • Average1%
  • Poor1%
  • Terrible1%
Travellers talk about
“tour guide”(24 reviews)
“solar eclipse”(8 reviews)
“lake geneva”(30 reviews)
Yerkes Observatory will be open for public tours until September 29, 2018 after which it will be closed at least temporarily until further notice. Consult the website for tour dates and times . The Observatory is the home of the world's largest...more
Closed Now
Hours Today: 12:15 pm - 3:15 pm
See all hours
Suggested duration: 1-2 hours
373 W Geneva St, Williams Bay, WI 53191-9603
+1 262-245-5555
Reviews (317)
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All reviewstour guidesolar eclipselake genevaterra cottalarge domesaturday tourarchitectural detailsarchitecture buffsknew his stuffgift shopbeautiful architecturewealth of knowledgegreat touran amazing experienceexplained everythingonce in a lifetimelearn something
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1 - 10 of 316 reviews
Reviewed 3 days ago

When I heard that the Yerkes Observatory was about to close we decided to make the trip to Williams bay to see it. What an amazing and historic place! The tour guide covered many of the quirky aspects of the decoration used by the architect....More

Thank dlak143
Reviewed 5 days ago

We loved grounds, which are beautiful as well as this magnificent building. We took the tour yesterday and Richard our guide was fantastic.. The employees are very passionate about Yerkes, and their enthusiasm shows. We were excited to see the largest refracting telescope.. The tour...More

Thank Sue B
Reviewed 6 days ago via mobile

It’s sad that the University of Chicago is shutting down this magnificent historic site. We went there today for the tour and had a wonderful astronomical, architectural, and historical experience. Thanks to the dedicated employees and guides, they did a great job and it was...More

Thank William R
Reviewed 1 week ago

The lady in the visitor centre at Lake Geneva advised to go and see this beautiful place before it closes to the public. We are not stargazers but we were more interested in the building. This building is easy to find and when you turn...More

Thank Lesley P
Reviewed 1 week ago

If you have any interest in astronomy, history or architecture, you need to carve out a day now to see this place. It is truly an undiscovered gem of a destination and one which may be lost forever at the end of this month. For...More

Thank KenofKen
Reviewed 1 week ago

This is a wonderful place to visit. To see something with this much history that is still working in a true joy.

Thank Chuck C
Reviewed 1 week ago

Highly recommend a tour of this facility. The architecture or this hundred year old building is amazing and the stories behind how it was built is fascinating. The visit to the observation room is just as inspiring. They demonstrate how the telescope is used by...More

Thank Sonja845
Reviewed 1 week ago via mobile

My boyfriend and I came to visit Yerkes for my birthday weekend. It was truly amazing! The architecture is amazing. The history was so fascinating!! You can also take tours (limited hours so check their website). Our guide was Richard and he was absolute wealth...More

Thank Serendipity2478
Reviewed 1 week ago

Seeing Yerkes up close and personal, shows the wisdom and ingenuity of the Titans of the 19th century.

Thank lmglass56
Reviewed 1 week ago

If you take the time to slowdown and look at the detail of the building it is fascinating and beautiful. Hard to think that the observatory was built in 1895. In some respects it seems advanced for that time. The tour stories were entertaining as...More

Thank Vicki H
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Questions & Answers
Ask a question
Mary D
23 August 2017|
AnswerShow all 4 answers
Response from SteveT6029677454 | Reviewed this property |
Thanks for your comment Mary. Important for other folks to know.
Bridget G
28 June 2016|
AnswerShow all 5 answers
Response from Dan K | Property representative |
Bridget, our tours are most appropriate for ages 6 and up. Weekday tours are structured and visitors must stay with the tour guide at all times. Yerkes is a working facility and our offices are open on the main floor and... More
27 August 2015|
Response from Dan K | Property representative | Reviewed this property |
Hi, and thanks for asking about Yerkes. I am one of the tour guides and am happy to give you directions. The Observatory is located at 373 W Geneva St (Hwy 67), Williams Bay, WI 53191. Travel west from the central area of... More