Fresco at tritons 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 century convent cultural culture decorated decoration door fabulous fantastic figure figures flowers fresco hall halls house houses impressive indoor indoors inside interior mythical mythological ornament ornaments painting paintings room rooms sala shell shells sight sightseeing style terrena triton tritons visit wall walls