JOE:Talk me through this drawbridge. How does it actually work ... So the pieces of string on here represent the chain. So if I turn the model around– JOE:Yeah. SEGE:You can see I've put ...

You've never seen a bridge like this before. This is the Slauerhoffbrug. Otherwise known as the "Flying Drawbridge." You can find it in the city of Leeuwarden in the Netherlands. It crosses over ...