You almost have to go to the edge of Europe to find the whistling village of Antia. Take a ferry from the Greek mainland to the island of Evia. Pass giant wind farms and a hidden waterfall.
Then you encounter the unique voice of Kyriaki Giannakari, trilling as clear as a bird, chatting to her distant neighbors.
Experts believe the language dates back to ancient Greek times. One theory is that it was created by Persians 2,500 years ago after they were defeated in the great naval Battle of Salamis. Survivors washed up on the shores of Evia whistled to each other to avoid detection from vengeful ancient Greeks.