Libourne is a commune in the Gironde department in Aquitaine in southwestern France. It is a sub-prefecture of the department. It is the wine-making capital of northern Gironde and lies near Saint-Émilion and Pomerol. The Gothic church, restored in the 19th century, has a stone spire 232 ft (71 m) high. On the quay there is a machicolated clock-tower which is a survival of the defensive walls of the 14th century; and the town-house, containing a small museum and a library, is a quaint relic of the 16th century. It is located by the main square, the Place Abel Surchamp, which hosts every week end one of the largest fresh food market in the region.