On the peak of a steep mountain situated on the right bank of the San river, the ruins of Sobień castle from the second half of the 14th century can be seen. The castle was owned by the wealthy chivalry house of Kmita. Then the Kmita family moved their abode to Lesko, where Piotr Kmita erected a castle in the16 th century, which was subsequently extended by the Stadnicki family. The castle is open to visitors.
An Italian park was established already in the 16th century and continued through the 17th century. In the 18th century the park was planted with lime tree alleys. They are listed in the castle records from that century. In the first half of the 19th century the Krasicki family established a landscape park around the castle.
Redipuglia is the largest Italian Military Sacrarium. It rises up on the western front of the Monte Sei Busi, which, in the First World War was bitterly fought after because, although it was not very high, from its summit it allowed an ample range of access from the West to the first steps of the Karstic table area.
The monumental staircase on which the remains of one hundred thousand fallen soldiers are lined up and which has at its base the monolith of the Duke of Aosta, who was the commanding officer of the third Brigade, and gives an image of a military grouping in the field of a Great Unity with its Commanding Officer at the front. The mortal remains of 100,187 fallen soldiers lie here, 39,857 of them identified and 60,330 unknown.