Here is the site page on the eight mermaid statues on Rossio Square in Lisbon, Portugal. There are two fountains, made in France in 1889, each with 4 divinities in the center, and 4 mermaids along the perimeter.
This site is about mermaids on planet Earth
Why? Because mermaids are all around us. Lots of them. No, not actual live mermaids of course…