I arrived at the castle area by car from the entrance of Riva for about 15 minutes. Although the castle area on the map is very large, it is actually the church and castle. Trsat Church-our lady of trsat sanctuary is the largest religious sanctuary in western Croatia. There are several grand worships every year that attract pilgrims from Croatia and surrounding areas. The biggest religious festival is the Assumption Day. Posters are hung at the door of the church, and the large portrait of the Pope shows that Pope Francis is here these days. When I went there was a church service. Everyone was in a long line. I couldn't see the Pope in the Vatican. It was a miracle of God.