A short stroll from the Old Customs House takes you to the Quartier des Tanneurs (the Tanners' Quarter), a beautiful neighborhood of picturesque canals and wonderfully restored half-timbered houses dating back to the 17th and 18th centuries.
The aptly named quarter was where tanners created leather products. They would use upper floors of the houses to dry out the skins. Noteworthy attractions include the Market Hall and the 18th-century Palais de Justice (Law Courts).
Another must-see is the Hôtel des Chevaliers de St-Jean (House of the St. John's Knights), built in the style of a Venetian palace and one of the most unusual Renaissance mansions in Alsace.