Urban infrastructure as improvised exercise equipment: the scaffold cross-member becomes a chin-up bar; the bench at the bus waiting area becomes a push-up stand; the stainless steel bollard becomes a gymnastics horse. In what I now recognize to be a time-honored NYC tradition, spontaneous workouts are enacted on all manner of street architecture, creating incongruous and often comic spectacles amidst the unrelenting tide of pedestrians, bikes and cars. These workouts, supremely practical though they might be, are also opportunities for showmanship and exhibitionism, and this would seem to explain why they take place most often at the intersection of busy streets.