IMG_20190717_081406 Wooden bridge or sewer segment
20190710_143740 A sculpture of Ondenis in the Samogitian sanctuary
Samogitian Alka, or Samogitian sanctuary ("Žemaičių Alka") is a little pagan sanctuary in Lithuania, on the coast of the Baltic sea, north of the Šventoji town. It's situated on the small hill by the beach on the other side of the dunes. You can see the sea from here, which, I suppose, makes it a perfect place for pagan rituals.
It consists of about a dozen wooden poles, which are statues of various ancient Baltic gods, carved by Lithuanian folk artists in the late 20th century.
This is a sculpture of Ondenis, an ancient Baltic pagan water god in the Samogitian sanctuary / Žemaičių alka. It's not so much the likeness of the god as a symbolic representation of him. Well, at least I can think why this shape was chosen to represent the water god, because it has fins. But overall I suppose most of those shapes were dictated by the artists' imagination, because there is way too little historical knowledge surviving about ancient polytheistic Baltic religions. Any mentions of Baltic deities in the Middle Ages were made by Christian monks, scribes and politicians -- people who didn't hold pagan religions in high regard. So we can only guess how those deities were visually represented (if at all) back in the day.