anchor.diff:                  <h4 class="span8">Sounion</h4>
                   <ul class="span3 thumbnails">
                       <li>
  -                        <span class="thumbnail">
  +                        <a href="http://www.visitgreece.gr/en/nature/forests/sounio_national_park" target="_blank" class="thumbnail">
                               <%= image_tag 'guide/sounion_posidon_temple.jpg' %>
                               <p class="attribution">photo by Belyshev CC BY-SA 3.0</p>
  -                        </span>
  +                        </a>
                       </li>
                   </ul>
   
  
positive.code:                     </li>
  
                      <li class="span2">
                          <span class="thumbnail">
                              <p class="title">Archaeological Museum</p>
                              <%= image_tag 'guide/National_Archaeological_Museum_Athens_building.jpg' %>
                              <p class="attribution">photo by Dimboukas</p>
                          </span>
                      </li>
                  </ul>
  
  
negative.code:                 <h4 class="span8">Delphi</h4>
                  <ul class="span3 thumbnails">
                      <li>
                          <a href="http://www.visitgreece.gr/en/culture/archaeological_sites/delphi" target="_blank" class="thumbnail">
                              <%= image_tag 'guide/delphi_temple_of_aprhodite.jpg' %>
                              <p class="attribution">photo by JD Lafontaine CC BY-SA 2.0</p>
                          </a>
                      </li>
                  </ul>
  
  