St. Sernin, Toulouse, France General view of exterior Source: By Felipeh at fr.wikipedia [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/)], from Wikimedia Commons. http://commons.wikimedia.org/wiki/File%3ABasilique_Saint-Sernin_-_Toulouse.jpg

St. Sernin, Toulouse, France Principal facade Source: Photograph by Mike Peel (www.mikepeel.net). [CC-BY-SA-4.0 (http://creativecommons.org/licenses/by-sa/4.0)], via Wikimedia Commons. http://commons.wikimedia.org/wiki/File%3ABasilique_St-Sernin_2.jpg

St. Sernin, Toulouse, France Partial view of exterior By Guimsou (Own work) [CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons. http://commons.wikimedia.org/wiki/File%3ASt_Sernin_Toulouse.JPG

St. Sernin, Toulouse, France Partial view of apse (exterior) Source: © José Luiz Bernardes Ribeiro / , via Wikimedia Commons. http://commons.wikimedia.org/wiki/File%3ABasilica_of_St_Sernin_-_Toulouse_-_France_2014_(2).JPG

St. Sernin, Toulouse, France Nave Source: By User:PierreSelim (Self-photographed) [CC-BY-3.0 (http://creativecommons.org/licenses/by/3.0), GFDL (http://www.gnu.org/copyleft/fdl.html) or FAL], via Wikimedia Commons. http://commons.wikimedia.org/wiki/File%3AInterior_of_Basilica_St_Sernin_-_2013-05-23.jpg

St. Sernin, Toulouse, France East elevation Source: G. Dehio and G. v. Bezold, Die Kirchliche Baukunst des Abendlandes, Stuttgart, 1887-1902, plate 22. Public domain. http://commons.wikimedia.org/wiki/File:StSerninToulousDB22.jpg

St. Sernin, Toulouse, France Section Source: By JMaxR (Own work) [CC-BY-SA-2.0-fr (http://creativecommons.org/licenses/by-sa/2.0/fr/deed.en)], via Wikimedia Commons. http://commons.wikimedia.org/wiki/File%3ACoupe_transversale_st_sernin.svg

St. Sernin, Toulouse, France Plan Source: "Plan st-sernin toulouse" by JMaxR - Own work. Licensed under Creative Commons Attribution-Share Alike 2.0-fr via Wikimedia Commons - http://commons.wikimedia.org/wiki/File:Plan_st-sernin_toulouse.svg#mediaviewer/File:Plan_st-sernin_toulouse.svg