Tektonikarena Sardona - UNESCO World Heritage Site
The Tektonikarena Sardona is a UNESCO World Heritage Site in eastern Switzerland, located in the cantons of Glarus, St. Gallen, and Graubünden. It showcases geological processes that illustrate the formation of the Alps, with rock layers over 250 million years old clearly visible. The Glarus main thrust demonstrates how Earth's crust shifts. Steep cliffs and green valleys shape the landscape, and hiking trails provide insights into the geological development of the region.