The St. John’s (Jaani) church in Valga is one of the most beautiful churches in Estonia. The construction started in 1787, but it was not completed until 1816. The church represents Baroque and Classicism styles. It was built according to the design of architect Christoph Haberland and it is the only church in Estonia with an oval ground plan. The unique organ has been preserved in its original shape and it is the only instrument built by Friedrich Ladegast still left in Estonia.
Reference: Visit Estonia
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.