Using http://openlayers.org/dev/examples/xml/georss-flickr.xml as a GeoRSS feed containing photos.
Adapted from the example at http://openlayers.org/dev/examples/georss-flickr.html.

[map baselayers="osm" layers="1,2" 1="georss|http://openlayers.org/dev/examples/xml/georss-flickr.xml|Flickr|icon=thumbnail"
2="georss|http://api.flickr.com/services/feeds/geo/?id=43483851@N02&lang=en-us&format=rss_200|Provincie Noord-Brabant|icon=thumbnail"
width="600" height="400" zoom="1" /]