Early in each semester, I take my students on a photo walk through the alleys of Pittsburgh. For many of them this is their first time in a city environment let alone the first time in an alleyway. The alleys in downtown Pittsburgh are neat, tidy and bright canyons behind the bustling business districts. During the day the alleys are inhabited by people on the move often looking for a shortcut between the streets. As the high afternoon light falls in between the buildings it creates an interesting dynamic light as it passes through overhead wires, fire escapes and other vertical structures. It gives the students the opportunity to see and photograph light and an opportunity to explore their neighborhood in downtown Pittsburgh.