Anish Kapoor’s Cloud Gate sculpture, Chicago. Photo: Craft Scotland via Flickr ((https://www.flickr.com/photos/craftscotland/22532280047/in/photolist-Ak6PR2-5CUQ9m-21vr1e1-AY51TT-pfNFhN-21c6nMx-rLKPZ-5YguGQ-829pfc-qkJzLs-rywUK-4vkjHC-rLKQ4-5614pL-4tz5Eu-3G8crj-hLpdFD-4m5rjt-hLpGtd-U9MiLR-8mmjfq-8mhXgK-7eXiwB-pFwbTP-e9nYku-2cRuWLJ-7f2cds-abkbAo-QN9zjN-hLpd2n-hLq2Wj-eZmCvy-cNWEAh-hLqkDH-hLq2oq-p5J8yU-QN9zEC-7eXj1z-2aanYem-2cRuWgW-pFwcy6-3G4pZa-2wQxmN-3HJiA6-7f2d4m-3TzcUg-3G4mUi-4SbVrM-8pDmDA-rLKBN), CC BY-SA 2.0