The astronomical clock of the Piazza San Marco, Venice
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/mteson/">Marcelo Teson</a>
CC BY 2.0
This image was originally posted to <a href="https://en.wikipedia.org/wiki/Flickr" class="extiw" title="wikipedia:Flickr"> Flickr</a> as <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/mteson/168766145/">Zodiac Clock</a>