The Tour Mélusine is the keep of a former castle in the commune of Vouvant. This keep and watchtower, built at the end of the 12th century or the beginning of the 13th century, is the only vestige of the ancient castle of the Lords of Lusignan built in the present location. This castle was separated from the fortified town of Vouvant by a moat. A chapel, long gone, was leaning against the tower.
This tower, 45 m high from the ditch and with its cylindrical shape, is original from that time. Indeed, the majority of the castles of this region and of this time are of the 'Niortais' style (a square tower with round towers at each corner).
The keep has a square base, which indicates the height of the curtain wall that surrounded the courtyard of the castle, which is today the Place du Bail ('bail' meaning 'fortified enclosure').
References:Visby Cathedral (also known as St. Mary’s Church) is the only survived medieval church in Visby. It was originally built for German merchants and inaugurated in 1225. Around the year 1350 the church was enlarged and converted into a basilica. The two-storey magazine was also added then above the nave as a warehouse for merchants.
Following the Reformation, the church was transformed into a parish church for the town of Visby. All other churches were abandoned. Shortly after the Reformation, in 1572, Gotland was made into its own Diocese, and the church designated its cathedral.
There is not much left of the original interior. The font is made of local red marble in the 13th century. The pulpit was made in Lübeck in 1684. There are 400 graves under the church floor.