text: Looks like it's already well mapped but the tags aren't recognised by the renderer. (Enable the Map Data layer to see what is there.) We should of course avoid http://wiki.openstreetmap.org/wiki/Tagging_for_the_renderer
  
  I have however improved the tagging slightly based on the content of the existing description tag by adding ruins=yes and fee=no. Not sure whether this will mean it's rendered on the Standard layer.