public ArrayList<Monument> retrieveMonumentsOnRoute(int RouteID) {
        ArrayList<Monument> monumentList = new ArrayList<>();
            String query = "SELECT * FROM MONUMENT JOIN ROUTEMONUMENT ON id = ROUTEMONUMENT.MonumentID WHERE ROUTEMONUMENT.RouteID =" + RouteID + ";";
        Log.d("QUERYMONUMENT", query);
        Cursor cursor = this.getReadableDatabase().rawQuery(query, null);

        if(cursor != null) {
            cursor.moveToFirst();

        } else {
            throw new Error("CURSOR IS NULL");
        }

        if(cursor.getCount() > 0 ) {
            do {
                Monument monument = new Monument.Builder()
                        .name(cursor.getString(cursor.getColumnIndex(DatabaseQuery.COL_MONUMENT_MONUMENTNAME)))
                        .description(cursor.getString(cursor.getColumnIndex(DatabaseQuery.COL_MONUMENT_DESCRIPTION)))
                        .creator(cursor.getString(cursor.getColumnIndex(DatabaseQuery.COL_MONUMENT_CREATOR)))
                        .soundURL(cursor.getString(cursor.getColumnIndex(DatabaseQuery.COL_MONUMENT_SOUNDFILEURL)))
                        .imageURL(cursor.getString(cursor.getColumnIndex(DatabaseQuery.COL_MONUMENT_IMAGEURL)))
                        .latitude(cursor.getDouble(cursor.getColumnIndex(DatabaseQuery.COL_MONUMENT_LATITUDE)))
                        .longitude(cursor.getDouble(cursor.getColumnIndex(DatabaseQuery.COL_MONUMENT_LONGITUDE)))
                        .constructionYear(cursor.getInt(cursor.getColumnIndex(DatabaseQuery.COL_MONUMENT_CONSTRUCTIONYEAR)))
                        .build();

                if(cursor.getInt(cursor.getColumnIndex(DatabaseQuery.COL_MONUMENT_ISVISITED)) == 1) {
                    monument.setVisited(true);
                } else
                {
                    monument.setVisited(false);
                }
                monumentList.add(monument);
            }while (cursor.moveToNext());

            return monumentList;
        } else {
            cursor.close();
            throw new Error("ROUTE COULD NOT BE FOUND BECAUSE EITHER IT DOES NOT EXIST OR INVALID PARAMETERS!");
        }
    }