Broadway NY is an iconic N-S road running from the tip of Manhattan to the Phelps hospital by route 117. The whole route is 32 miles and can be run in either direction. The road follows Hudson River though at a distance and spans all of Manhattan, Kingsbridge, passing Van Cortland Park, Riverdale, Yonkers, Hastings-On-Hudson, Dobbs Ferry, Irvington, Tarrytown and Sleepy Hollow. 

This route is believed to be the first circle bypass route in the U.S.  Finished in 1958 the Ross Clark Circle, (state route 210) is officially 13.77 miles around the city of Dothan, AL.  Various parts of the circle is ran by local runners with few ever running the complete circle.  However there is an annual 1/2 marathon in October that allow runners to use most of the circle during the race but still falls short of completing it by approx .67 miles.  I believe runners will be looking forward to speeding around the route of "Dothan Circle City" in pursuit of an FKT.

City of Calcedonia Trail

The Fenda da Calcedonia, is the biggest crack in Portugal