How the heck did they make this!? 👀🤔 and who the heck gonna walk on it?! 😳 The longest US pedestrian bridge is 680 feet. Located in Tennessee across a valley in the Great Smoky Mountains. The bridge will be open to the public May 17. 🤦🏾‍♀️ #dailysocialinform #dsi #DSI #tennessee #longestbridge #tourist #bridge #pedestrians #mountains #cnn #travel