First photograph By Arild Vågen – Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=24932378
Second photograph By Steve Evans from Citizen of the World – Istanbul 036Uploaded by russavia, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=25834488
Third photograph By Wilhelm Lübke / Max Semrau: Grundriß der Kunstgeschichte. 14. Auflage. Paul Neff Verlag, Esslingen, 1908; German Wikipedia, original upload 28. Aug 2004 by Rainer Zenz, Public Domain, https://commons.wikimedia.org/w/index.php?curid=387533
Fourth photograph By I, JoJan, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=2313336
Fifth photograph By Gaspare Fossati (artist, 1809-1883)Louis Haghe (lithographer, 1806-1885)Adam Cuerden (restoration) – This image is available from the United States Library of Congress’s Prints and Photographs division under the digital ID cph.3g11883.This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing for more information.العربية | čeština | Deutsch | English | español | فارسی | suomi | français | magyar | italiano | македонски | മലയാളം | Nederlands | polski | português | русский | slovenčina | slovenščina | Türkçe | українська | 中文 | 中文(简体)‎ | 中文(繁體)‎ | +/−, Public Domain, https://commons.wikimedia.org/w/index.php?curid=33429556
Sixth photograph By Tranxen – Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=6161594
Seventh photograph By Photograph: Myrabella – Own work, Public Domain, https://commons.wikimedia.org/w/index.php?curid=23970627
Eight photograph By I, JoJan, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=2312660

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