Pittsburgh Stairs (PA)
This route is a magnificent, sadistic 50km tour of Pittsburgh, PA’s most unique infrastructural feature: named staircase streets. These stairs from the city’s bygone era of steel and heavy industry were a way for workers living in neighborhoods in the cliffs and hills above the 3 rivers to commute directly down and back up. Many are now closed or decrepit but remain a gritty testament to Pittsburgh’s industrial roots. In the early days of GPS navigation, drivers would apparently get directed down roads only to dead-end at a staircase.