On our way up to Bar Harbor we stopped at the Penobscot Narrows Bridge and Observatory. This bridge spans the Penobscot River in Maine, near Fort Knox. I had never been to the top of a bridge span because it would be petrifying to climb the cables. This bridge however had an elevator to the observatory on the top of one of the towers. We had a 360 degree view of the neighboring islands, rivers, towns, and mountains.
Special note: This is the tallest bridge observatory in the world. At 447 feet, it is taller than the Statue of Liberty (305 feet) but not taller than the Washington Monument in DC (555 feet).