You can smell the tanneries in Fez,Morocco, long before you can see them. The stench comes from the diluted bird excrement used to soften animal hides as they’re turned into leather. The soft leather is then dyed in these large vats by men working hours at a time on each hide in harsh summer heat. Then the hides are hung to dry on the roofs around the old quarter.
Flickr user Mark Fischer captured this image of a tannery worker in the dyeing vats from the balconies surrounding the tannery. It’s basically an assembly line at ground level, so tourists aren’t allowed in, but the smell is often enough to keep most people at bay.
