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 the Harlinger Vaart River. How does it "fly?" The Slauerhoffbrug is classified as a tail bridge. It uses a single pylon, instead of traditional hinges. This method allows for a quick opening. Two hydraulic cylinders in the pylon do the lifting and lowering. Heavy boat traffic utilizes the bridge opening.