The Route 66 Chain of Rocks Bridge on the Missisippi River at St. Louis Missouri. <br />
The Old Chain of Rocks Bridge, at 5,353 feet<br />
long, is one of the world&rsquo;s longest bicycle and<br />
pedestrian bridges. The bridge spans the <br />
Mississippi River and provides a vital link in the <br />
b-state trail system, connecting to the MCT <br />
Confluence Trail in Illinois and the St. Louis <br />
Riverfront Trail in Missouri. The bridge has a<br />
rich history and was added to the National<br />
Register of Historic Places in 2006.