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Chicago is the birthplace of innovations that allowed for the design and construction of the world’s first skyscrapers. CAC docent Bill Lipsman takes a closer look at these engineering breakthroughs on July 8 and Aug. 15.

$8 Public
Free for CAC members

This program will be hosted on Zoom. Approximately 3 hours before the start of the program, you will receive a link directly from Zoom with details about how to access and view it.

If you do not receive your link 2 hours prior to the start of the event, please contact Please note, if you do not contact us at least 30 minutes prior to the start of the program, we cannot guarantee admittance.

This presentation showcases five specific structural types throughout the history of high-rises—each utilizing a unique technology that allowed and supported building taller and taller.


Bill Lipsman

Bill Lipsman is a retired in-house counsel and has been a CAC docent since 2009. During his 35-year legal career, he advised management of two international food and consumer products companies, including during a two-year assignment in the Netherlands. At age 11, his interest in architecture was sparked by the completion near his home of John Deere World Headquarters, designed by Eero Saarinen and completed by Kevin Roche. In addition to leading Chicago Architecture Foundation Center River Cruises aboard Chicago’s First Lady and other CAC tours, Lipsman is active in Northwestern University’s Osher Lifelong Learning Institute and helps care for his three grandsons.

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