The city of Fez is the third largest in Morocco, and is home to over one million people. Fez is famous for its leather products, and most of them come from the leather bazaar, otherwise known as a souq. There are three ancient leather tanneries, one of which is almost a thousand years old.
Vast stone vessels are filled with dyes and liquids (including pigeon droppings!) and look like little pots of paint! The leather is dyed into beautiful colours; and the tanners stomp on the hides working them with their feet until they're soft and pliable, and eventually turned into leather products. The process hasn't really changed since medieval times, and it's an incredible sight. Well worth visiting if you're ever in Fez.