CBS NewsWillis Tower SkyDeck: Protective layer cracks under visitors' feet in ChicagoJun 12, 2019Sophie LewisBy Sophie Lewismore_vert
CNNThe SkyDeck ledge of the Willis Tower cracks under visitors' feetJun 12, 2019Christina Zdanowicz & Sophie SherryBy Christina Zdanowicz & Sophie Sherrymore_vert