"Boston has the first one, New York has the longest one and Cincinnati has the quietest one." It's an eerie, but all-to-true sentence uttered at the beginning of the
trailer for a new documentary about the
Cincinnati's Subway. Abandoned in 1925, the Cincinnati Subway never saw a single rider and exists today as 1.8 miles of forgotten tunnel beneath the city streets. You've seen it before through the photographs here on QC/D:

Now you can see the subway from another perspective in a new documentary from Time Bonus Productions: