Monument commemorating the Du jiang yan irrigation system in bas relief.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/50178625@N00">Ken Marshall</a> from Absecon, NJ, USA
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/50178625@N00/874988433/">IMG_2428</a>