Kwidzyn contains the partially ruined 14th century Brick Gothic Ordensburg castle of the Teutonic Order, namely the Bishops of Pomesania within the Order. Connected to the castle to the east is a large cathedral (built 1343-1384) containing the tombs of the bishops as well those of three Grand Masters of the Teutonic Knights.
The former Prussian fortress in Kwidzyn, which was occupied by the Teutonic Knights in 1233, received the city rights during the same year. In 1440 there was established the Prussian Union - today the Pomesanian"s cathedral chapter is the most precious historic and architectural treasures of Kwidzyn.
The wings of the castle with towers at the corners belonged to the defense system. Main tower today dominates the entire massif of the castle, which was also a bell tower lookout. The literally outstanding feature is a characteristic tower 'dansker' known as gdanisko of 1384. It was set by more than 50 meters from the west wing of the castle and the castle was combined with a long five spanning porches. Today the castle houses the Museum of the Castle. Kwidzyn history, its monuments and picturesque surroundings are enough attractions to visit for even the most demanding tourists.
Duino Castle was built by the Wallsee family in 1389 on the cliffs overlooking the Gulf of Trieste. It replaced an older castle from the 11th century. Over time, the Wallsee family disappeared and the castle, after having been used as a prison, became the residence of the Luogar and Hofer.
At the end of the 19th century it became the property of Prince Alexander von Thurn und Taxis from the Czech branch of the House of Thurn and Taxis. It remains with the family to this day with his great-grandson Prince Carlo Alessandro della Torre e Tasso, Duke of Castel Duino the current owner. The castle has been opened to the public as a museum and park.