Sunnersberg medieval church dates back to the 1200s, but it has been enlarged and reconstructed several times. Fire damaged it badly in 1583. The most remarkable detail is an altarpiece, which is painted by famouse Flemish Baroque artist Anthony van Dyck in 1620. It was donated to Sunnesberg church by Clas Julius Ekeblad in 1779. The pulpit was donated by Magnus Gabriel De la Gardie in 1670.
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The Gravensteen is a castle in Ghent originating from the Middle Ages. The name means 'castle of the counts' in Dutch. Arnulf I (918–965), Count of Flanders, was the first to fortify this place, building a medieval bastion on this high sand dune, naturally protected by the river Leie and its marshy banks. This bastion consisted of a central wooden building and several surrounding buildings, also in wood.
In the early 11th century, the wooden building was replaced by a stone residence, consisting of three large halls that made up three storeys, connected by a stone stairwell. The monumental stone staircase, the light openings, the fireplaces built into the walls and the latrines were signs of considerable luxury and comfort in those days. There was probably also a tower.