![Tourists in the all glass balcony Skydeck observation deck view the Chicago skyline103rd floor of the Willis Sears Tower Stock Photo - Alamy Tourists in the all glass balcony Skydeck observation deck view the Chicago skyline103rd floor of the Willis Sears Tower Stock Photo - Alamy](https://c8.alamy.com/comp/BT63XW/tourists-in-the-all-glass-balcony-skydeck-observation-deck-view-the-BT63XW.jpg)
Tourists in the all glass balcony Skydeck observation deck view the Chicago skyline103rd floor of the Willis Sears Tower Stock Photo - Alamy
![Tower Verre building 53 West 53 by 53 West 53rd Street also known as the MoMA Expansion Tower, Manhattan, New York City, USA Stock Photo - Alamy Tower Verre building 53 West 53 by 53 West 53rd Street also known as the MoMA Expansion Tower, Manhattan, New York City, USA Stock Photo - Alamy](https://c8.alamy.com/zooms/6/292789c9f262475486f19025823047e9/w9kbbm.jpg)
Tower Verre building 53 West 53 by 53 West 53rd Street also known as the MoMA Expansion Tower, Manhattan, New York City, USA Stock Photo - Alamy
![À Chicago, le plancher en verre d'une tour de 400 mètres se fissure sous les yeux des visiteurs - YouTube À Chicago, le plancher en verre d'une tour de 400 mètres se fissure sous les yeux des visiteurs - YouTube](https://i.ytimg.com/vi/rrdW0n-eu-Q/maxresdefault.jpg)