Plan of the ground floor of the <a href="https://en.wikipedia.org/wiki/Louvre_Palace" class="extiw" title="en:Louvre Palace">Louvre</a> around 1830 by Charles Vasserot, with the Aile Napoléon marked in yellow
<bdi><a href="https://www.wikidata.org/wiki/Q98794834" class="extiw" title="d:Q98794834"><span title="French architect, architectural painter, and watercolorist, 1804-1867">Charles Vasserot</span></a>
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The image was converted to grayscale, light levels adjusted, and cropped, and the Aile Napoléon was marked in yellow.