The Old Town of Policastro is enclosed by medieval walls of Norman origin, dating from the time of King Roger I (11th century), and is dominated by a fortified castle. Policastro Bussentino also has other ancient monuments of great historical and artistic value.
The Castle of Policastro Bussentino stands out and was formerly a Byzantine fortress built in the 6th-7th century at the end of the Greek-Gothic War when Bussento passed under the dominion of the Byzantines, who built a fortress on the highest point of the hill.
In the 14th century the castle was enlarged and strengthened by Giacomo Sanseverino (1290-1364), as we can read on the marble inscription above the door to the east: Magnifico Domino Iacobus de Santo Sevirino, of 1309.
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.