View of the Castle of Heidelberg. Original at <a href="//commons.wikimedia.org/wiki/Category:Nationalmuseum_Stockholm" title="Category:Nationalmuseum Stockholm">Nationalmuseum Stockholm</a>.
<bdi><a href="https://en.wikipedia.org/wiki/en:Carl_Dahl" class="extiw" title="w:en:Carl Dahl"><span title="painter (1812-1865)">Carl Dahl</span></a>
</bdi>
<a rel="nofollow" class="external text" href="https://www.europeana.eu/portal/record/2048005/Athena_Plus_ProvidedCHO_Nationalmuseum__Sweden_19920.html">europeana.eu</a>