Burg Ottenstein
★★★★☆
Burg Ottenstein is a hilltop castle in the Waldviertel in Lower Austria that stands on a hill above the Ottenstein reservoir. One of the oldest parts of the castle is the castle chapel, with frescoes from the second half of the 12th century. Like many other castles, it was romanticized around 1867-1878, with cone and canopy roofs and red-white window shutters.