![Transparent Balcony on 103 Floor Skyscraper the Sears Tower, Chicago | Sears tower, Sears tower chicago, Willis tower Transparent Balcony on 103 Floor Skyscraper the Sears Tower, Chicago | Sears tower, Sears tower chicago, Willis tower](https://i.pinimg.com/originals/9d/72/da/9d72daf2bd273b57e11b95842a5b01fb.jpg)
Transparent Balcony on 103 Floor Skyscraper the Sears Tower, Chicago | Sears tower, Sears tower chicago, Willis tower
![New Willis Tower observatory attractions may include rappelling from the 103rd floor - Curbed Chicago New Willis Tower observatory attractions may include rappelling from the 103rd floor - Curbed Chicago](https://cdn.vox-cdn.com/thumbor/31Lvdg3Ri0abgnWbPpPGHUcvT88=/0x0:1000x550/1400x1400/filters:focal(500x175:660x335):format(jpeg)/cdn.vox-cdn.com/uploads/chorus_image/image/53836025/AR_170329962.0.jpg)
New Willis Tower observatory attractions may include rappelling from the 103rd floor - Curbed Chicago
![Glass floor of Chicago tower's 103rd floor begins to crack under family's feet | The Independent | The Independent Glass floor of Chicago tower's 103rd floor begins to crack under family's feet | The Independent | The Independent](https://static.independent.co.uk/s3fs-public/thumbnails/image/2014/05/30/10/floor.jpg?quality=75&width=1200&auto=webp)
Glass floor of Chicago tower's 103rd floor begins to crack under family's feet | The Independent | The Independent
![Visitors' Worst Nightmare Comes True As The Glass Floor On 103rd Floor Shatters Under Their Feet | Glass floor, Willis tower skydeck, Breathtaking views Visitors' Worst Nightmare Comes True As The Glass Floor On 103rd Floor Shatters Under Their Feet | Glass floor, Willis tower skydeck, Breathtaking views](https://i.pinimg.com/736x/ea/6a/76/ea6a768204c1f9b89d722c4719e2c1f0.jpg)