07/08/2026
There's a building on the shore of Geneva Lake where Albert Einstein came to look at the stars. 🔭
It's not a mansion. It's an observatory — and it's one of the most extraordinary structures in the American Midwest.
Yerkes Observatory is known as "the birthplace of modern astrophysics." Founded in 1892 by astronomer George Ellery Hale and financed by businessman Charles T. Yerkes, it sits right on the shore of Geneva Lake in Williams Bay, Wisconsin, and was opened in 1897.
Inside the main dome, a 60-foot-long, six-ton refracting telescope still stands — with two 40-inch lenses at one end. It remains the largest refracting telescope in the world. If you want to look through the eyepiece, an operator flips a switch and the dome's entire circular floor rises 23 feet to give you access.
Astronomers like Edwin Hubble, Carl Sagan, and Nancy Grace Roman all worked here — and Albert Einstein visited, with Yerkes at the top of his bucket list on his first trip to the United States.
The man who funded it all, Charles T. Yerkes, was fighting off charges of fraud, embezzlement, and bribery at the time — and saw the observatory as an opportunity to save his reputation. Whatever his motives, the result was something extraordinary.
The grounds were designed by John Charles Olmsted, the nephew and adopted son of famed landscape architect Frederick Law Olmsted — the same family who designed New York's Central Park.
The shore path passes right by it. Our audio tour brings the whole story to life as you walk. 🎧
👉 Explore the Geneva Lake Shore Path audio tour: https://voicemap.me/tour/lake-geneva-wisconsin
