Castel Lueghi, in Slovenian grad Predjama, is a Slovenian castle whose beginning of construction dates back to the 13th century. In the period between the two world wars, the locality of the same name in which it is located was in Italian territory framed in the province of Trieste, in the municipality of Bucuie, which currently depends on the city of Postojna (Inner Carniola-Carso), from which the castle is about 9 kilometers. The manor, considered impregnable as it is located in the shelter of a karst cave on a rock wall 123 meters high, was the refuge of the knight Erasmus; inside (open to the public), you can see the living area, the chapel, the prisons, reconstructions of characters of the time, furniture and works of art with a pieta from 1420.