Portale nord della galleria ferroviaria del San Gottardo, a Göschenen
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/30523851@N00">Mike Knell</a>
<a href="//commons.wikimedia.org/wiki/Flickr" class="mw-redirect" title="Flickr">Flickr</a>: <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/30523851@N00/4467193105">2000th! Here's a 2000.</a>