This is absolutely wild A little over a month ago, we shared the news that Willis Tower would be undergoing $500 million worth of groundbreaking renovations that will…
![willis tower rappel](https://urbanmatter.com/chicago/wp-content/uploads/2017/03/Screen-Shot-2017-03-22-at-1.40.25-PM.png)
This is absolutely wild A little over a month ago, we shared the news that Willis Tower would be undergoing $500 million worth of groundbreaking renovations that will…