Monfalcone Castle, locally known as Rocca di Monfalcone or Castello di Monfalcone, lies on a mountain north of the town with the same name. Originally a prehistoric fortified village, the site was occupied by a Roman observation tower, guarding the road from the town of Aquileia to Trieste, and later by a fortress dating back to the reign of Theoderic the Great (around 490 AD).
As a stronghold of the Patriarch of Aquileia, overseeing the County of Duino, the castle was long contended for by the Patriarch and the Count of Gorizia, but was also a 'free commune' holding a seat in the Friulian Parliament.
Having surrendered on 14 July 1420 to the troops of the Venetian doge, Tommaso Mocenigo, it became an important outpost for the protection of the Venetian mainland against the Count of Gorizia and the Austrian Emperor and a defence against the attacks of the Turks.
In 1797 it came under Austrian rule and on 9 June 1915 it was occupied by the Italian army.
The castle is a square keep surrounded by a circular wall and a low earthen wall.
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.