Wind phone
Altrúchas, an art group in Dublin, Ireland, built a wind phone (fón gaoithe) on a mountain named Two Rock in August 2017. The wind phone was built from old supplies, and they were not actually allowed to build it. It was destroyed for unknown reasons less than two weeks after it was set up. Altrúchas later said that the destruction was "a strong statement from people that didn't like the project", but that they would not let it "take away from the positivity of the project".