Welcome to a family tree of sorts. This first statue is Juno, wife, and sister, of Jupiter. You see, Game of Thrones didn't invent that stuff!
To her left is Jupiter, king of the gods. He's shown as a bearded man sticking his chest out, holding fire or lightning in his right hand. You already know that Apollo, shown opposite, is the son of Jupiter, so that's one family connection.
Here's another. Two statues to the right of Jupiter is Apollo's son, Aristaeus. He is seen attaching ropes about Proteus, the old man of the sea. By holding on to Proteus, no matter what he changed himself into, Aristaeus was rewarded with nature's secret to keeping his bees safe from disease.
When you're done, walk back up the Royal Way, and make the first left into the Wood of the Domes.