The Standing Stones of Stenness, located in Orkney, Scotland, are a bunch of ancient rocks that have been standing there for ages. These stones are believed to be part of the oldest henge site in the British Isles, dating back to around 3100 BCE. People used to gather here for all sorts of rituals and ceremonies, and even today, these stones are shrouded in mystery and folklore. The site is now part of the Heart of Neolithic Orkney World Heritage Site, managed by Historic Environment Scotland. So, if you're ever in Orkney, make sure to swing by and say hi to these ancient rock stars!