This coming Tuesday the Skyscraper Museum will host the second of its In Situ webinars, which look at the history of concrete high-rises in anticipation of this Fall’s exhibition. Bill Baker, Emeritus Partner at SOM, and I will talk about the evolution of the concrete tube structure, in particular looking at two Chicago examples by SOM from the early 1960s–the Brunswick Building and the Chestnut-DeWitt apartments. Free admission, but registration is required. More details and registration here.