Suzhou is a major city on the lower Yangtze known for its canals, bridges, pagodas, and beautiful gardens.  These gardens were built and owned by wealthy families and emperors hundreds of years ago, and make for a pleasant place to wander during nice weather. Suzhou is also a major center for silk production and manufacturing, and a tour of a silk factory here provides an interesting and educational glimpse of this Chinese textile industry. Suzhou is designated a UNESCO World Heritage Site.