Visitors to the Willis Tower's SkyDeck got an extra scare Monday when the attraction's protective layer covering the glass splintered into thousands of pieces.
원문출처 : https://www.cnn.com/2019/06/12/us/willis-tower-skydeck-cracks-trnd/index.html
원문출처 : https://www.cnn.com/2019/06/12/us/willis-tower-skydeck-cracks-trnd/index.html