Feast your eyes on the awe-inspiring Dun Briste, a towering sea stack off the coast of County Mayo, Ireland. This natural marvel stands proudly at around 50 meters (164 feet) above the wild Atlantic Ocean, showcasing millions of years of Earth's history. Dun Briste, which means "broken fort" in Irish, tells a tale that dates back to the Carboniferous period, approximately 350 million years ago. 🌍 The striking horizontal layers you see are ancient sedimentary rocks, each layer representing a different chapter in our planet's geological story. These layers were formed in a shallow tropical sea environment, long before Ireland took its current shape. Separated from the mainland by the relentless forces of erosion, Dun Briste is not only a geological wonder but also a vital nesting site for seabirds. It's a symbol of nature's incredible power and beauty, standing as a testament to the ever-changing landscape shaped by time and tide.