NOW: The North Outer Roadway is open for the exclusive use of bicyclists and pedestrians 24 hours a day, seven days a week. The approach on the Manhattan side forces southbound cyclists into a five-block detour to get to Second Avenue.

Fun Facts:
Distance: 7,042 feet
Design: Two-level cantilever bridge built in 1909.
Engineer: Gustav Lindenthal
Architect: Henry Hornbostel
Manhattan entrance: 60th Street, between Second and First Avenues
Queens entrance: Queens Plaza and Crescent Street
Other info: The Queensboro bride bike and pedestrian path closes every year for the running of the New York City marathon.