Grotesque ceiling fresco, triton room, Benedictine convent Altenburg near Horn, Lower Austria

17th 18th altenburg austria austrian benedictine europe horn lower paul troger architectural architecture art artistic baroque building buildings ceiling century convent cultural culture decorated decoration fabulous fantastic faun figure figures fresco full grotesque hall halls house houses impressive indoor indoors inside interior mythical ornament ornaments painting paintings putto room rooms sala shell shells sight sightseeing style terrena triton visit wall walls