Autor: Allen McGregor
Título: Chicago skyscrapers July 10, 2012, from John Hancock Center looking south.
Data: 10 de Julho de 2012
Origem: https://www.flickr.com/photos/allenmcgregor/7721314076
Fonte: https://commons.wikimedia.org/wiki/File:Chicago_skyline,_viewed_from_John_Hancock_Center.jpg
Licença: https://creativecommons.org/licenses/by/2.0/deed.en
07-10-1872