The old Chain of Rocks bridge
spans the Mississippi River
just north of St. Louis.
For 3 decades, this was the landmark
for travelers driving on Route 66.
It's hard to forget a 30-degree turn
midway across a mile-long bridge
60-feet above the mighty Mississip.
Closed to auto traffic in 1970,
the bridge remains open for
hikers and cyclists to this day.
Check out this vintage pic
(Can you imagine 2 way traffic
on this narrow beauty?)