Gravelines 's a commune in the Nord department in northern France. It lies at the mouth of the river Aa 15 miles (25 km) southwest of Dunkirk. There's a market in the town square (Place Charles Valentin) on Saturdays. The "Arsenal" approached from the town square's home to an extensive and carefully displayed art collection. There're modern bronze statues in the grounds. History In the early 12th century, Saint-Omer was an important port in western Flanders. However silting gradually cut it off… (More on Gravelines)