What is the oldest suspension bridge still standing?
What is the oldest suspension bridge still standing? Upper Delaware Scenic and Recreational River is the home of the oldest existing wire suspension bridge in the United States - the Delaware Aqueduct, or Roebling Bridge as it is now known.
What is the most unstable bridge?
The Hussaini Hanging Bridge in Pakistan was once so unsteady, it washed away and had to be rebuilt. It's been dubbed the most dangerous bridge in the world.