Just above Sagrado, where the Gorizia district Karst offers incredible corners of wilderness and quiet, stands Castelnuovo. The view you get from this spot is quite unique and on the clearest days it opens up over the whole of the region of Friuli Venezia Giulia, from the mountains down to the sea. The rich landscape suggestions of the area blend with the noble, ancient origins of these places, which still today are attested by the neo-Palladian villa, the evocative gardens dotted with cypress trees, the age-old oaks on the vast wooded estate, the barchessa - Venetian dialect name for a long barn fronted by an arched portico and the tempietto namely, a little commemorative chapel.
Beneath the Castello Fortezza villa, which has stood in the centre of the estate since 1600 there are the ruins of an ancient villa dating back to the XII century and owned by the Counts Strassoldo.

Count Raymond Della Torre di Valsassina VI initiated the building of the present villa, which became the residence for the family's descendents. The Della Torre Valsassina family joined in marriage with the Counts Hofer - Hohenlohe.

During the First World War, the estate was used by the command of the III Army corps under General Cadorna and King Victor Emanuel III who managed to gain these territories from Emperor Franz Josef of Austria. Generals and soldiers of different nationalities, Italians, Austrians, Hungarians, Romanians and Russians fought on this Karst land and suffered the terrible atrocities of the war. Among these brave soldiers the name of a young Giuseppe Ungaretti, who served in the nineteenth battalion of the Brescia stands out.

Since for a couple of years now, the Associazione Amici di Castelnuovo (Association Friends of Castelnuovo) has devoted itself to the recovery of the historical memories related to the Great War by opening the trenches and communication trenches to the public, recovering the graffiti left behind, in the hall of the Villa, by soldiers, and finally by establishing a literary park dedicated to Giuseppe Ungaretti who drew the inspiration which would lead him to compose his poems, published in the Il Porto Sepolto (The Buried Harbour), on the battlefields nearby.