Completed in 2007, this revolutionary bridge spans the Penobscot River. This award-winning modern structure replaces the Waldo-Hancock Bridge, built in 1931.
"The Penobscot Bridge site is home to the Penobscot Narrows Observatory, the first bridge observation tower in the United States and the tallest public bridge observatory in the world. The tower reaches 420 feet (128 m) into the air and allows visitors to view the bridge, the nearby Fort Knox State Historic Site and the Penobscot River and Bay."