St. Lazare, Autun, France Distant view Source: By Félix Potuit (Own work) [Public domain], via Wikimedia Commons. http://commons.wikimedia.org/wiki/File%3AAutunVueG%C3%A9n%C3%A9rale.jpg

St. Lazare, Autun, France Exterior view Source: Jim Forest. Attribution-NonCommercial-NoDerivs 2.0 Generic (CC BY-NC-ND 2.0). https://www.flickr.com/photos/jimforest/3694063893

St. Lazare, Autun, France Exterior view Source: Alexis MONS. Attribution-NonCommercial-NoDerivs 2.0 Generic (CC BY-NC-ND 2.0). https://www.flickr.com/photos/alexismons/3518608747

St. Lazare, Autun, France Partial exterior view Source: By Christophe.Finot (Own work) [CC-BY-SA-1.0 (http://creativecommons.org/licenses/by-sa/1.0)], via Wikimedia Commons. http://commons.wikimedia.org/wiki/File%3AAutun_cathedrale.jpg

St. Lazare, Autun, France Nave Source: Steven Zucker. Attribution-NonCommercial-ShareAlike 2.0 Generic (CC BY-NC-SA 2.0). https://www.flickr.com/photos/profzucker/7090188665

St. Lazare, Autun, France Apse Source: By Jan Sokol (self-published work) [GFDL (http://www.gnu.org/copyleft/fdl.html), CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/) or CC-BY-SA-2.5-2.0-1.0 (http://creativecommons.org/licenses/by-sa/2.5-2.0-1.0)], via Wikimedia Commons. http://commons.wikimedia.org/wiki/File%3AAutun_inter_DSCN1637.JPG

St. Lazare, Autun, France Altar in apse Source: Jori Avlis. Attribution-NonCommercial 2.0 Generic (CC BY-NC 2.0). https://www.flickr.com/photos/joriavlis/5579499029

St. Lazare, Autun, France Plan Source: "Plan.cathedrale.Autun". Licensed under Public domain via Wikimedia Commons - http://commons.wikimedia.org/wiki/File:Plan.cathedrale.Autun.png#mediaviewer/File:Plan.cathedrale.Autun.png. This image comes from Dictionary of French Architecture from 11th to 16th Century (1856) by Eugène Viollet-le-Duc (1814-1879).