The ancient fishing village of Duino/Devin Duìn (in dialect triestino Devin in Slovenian and Tybein in German) is located between the southern slope of Monte Ermada/Grmada (323 m.) and the white cliffs that plunge into the Adriatic Sea. Make up this wonderful village the romantic ruins of the old castle, the imposing new castle with its salt, the park, the bunker and the breathtaking panorama. The manor, inhabited by the principles of the tower and the rate can be visited, together with its elegant garden. The suggestive "ulca", the narrow lane that by the Church continues along the walls of the castle surrounded by picturesque houses. Then there is the marina, the islet of Dante, the Bosco della Cernizza/Črničje crossed by trails that lead to the paleontological site and to the source of the River Timavo Timava/. The Monte Ermada with its dolines, caves, the trenches of the first world war and the ruins of Coische/Kohišče is interesting hiking destination. The Natural Reserve of the cliffs of Duino inside which winds the Rilke Promenade, makes this village a tourist destination that remains impressed in the hearts and minds of the visitors. Its development and its history are inextricably linked to those of its two castles, the old castle and new castle, even if the archaeological discoveries have demonstrated the presence of settlements already starting from the late Copper Age. From that time the area has always been inhabited. Is the locality northernmost in the world where there is a Mediterranean climate.
Before the Napoleonic wars (1796) the territory of Duino was part of the Duchy of Carniola. Until 1923 was part, as already previously to the period of membership in the Carniola, of the County of Gorizia and Gradisca under the Austrian domination and of the province of Gorizia in the period immediately following the annexation to Italy. In 1928 the municipality of Duino was dissolved and merged with the municipalities of Aurisina, Malchina, San Pelagio and Slivia, forming the new town of Duino-Aurisina. Since 1982 Duino is the seat of the United World College of the Adriatic, an international school attended by students from 80 different countries: one of 15 present in the world that are part of the organization of the Colleges of the United World.
The small historical center gathered around the castle and the point of arrival of the Trail Rilke, has a semicircular structure, crossed by narrow lanes and by a main street said ulca (i.e. track in Slovenian dialect of the place). The center was in antiquity protected by walls still partly visible. There is the Church of the Holy Spirit of 1591, located in the vicinity of the walls of the castle that was once part of a monastery of served. With the passing of time the locality has developed guidelines toward Trieste and the Friuli, and toward the sea with the locality of Duino Mare, now linked without solution of continuity with the historic center.
In the town and in the territory of Duino is in force for reads the full bilingual Italian/Slovenian.