The Flying Drawbridge - Slauerhoffbrug

Slauerhoffbrug also known as the 'Flying Drawbridge', is a fully automatic bascule bridge located in the city of Leeuwarden in Netherlands. The bridge uses two extending arms to actually lift a section of the road up and out of the way to let boats through underneath.

The tail bridge can quickly and efficiently be raised and lowered from one pylon (instead of hinges). This quickly allows water traffic to pass while only briefly stalling road traffic. Pretty unusual design.