Tour Goguin, Medieval tower in Nevers, France.

Tour Goguin is a cylindrical tower of light beige stone masonry on the Quai des Mariniers in Nevers, with a slightly wider rounded base and a conical dark roof. A tall, slender rectangular stone chimney rises near the top of the roof. Below the roofline are small rectangular windows with yellow frames, and patches of dark staining and moss mark the stone.

The tower was constructed in the 12th century as a defensive structure and was originally known as Tour de Cuffy. It was later converted into a windmill during the 17th or 18th century, marking a shift in its function before being preserved as a heritage site.

The tower served as a landmark for boatmen navigating the Loire River and shaped how travelers approached the city from the water. Its stone form remains a point of reference for people walking along the riverbank today.

The tower is located on Quai des Mariniers next to the Loire River, where an information board details its construction and modifications over time. The site is easily accessible from the riverbank, offering visitors a clear view of the structure and its stonework.

The tower's name comes from the owner who sold it in 1906, not from a medieval builder. Before that sale it was known as the tour de Cuffy. The cylindrical stone shaft, with its conical roof and slender chimney, is what remains of a building that also served as a windmill in the 17th or 18th century.