Firstside, the block-long row of human-sized buildings along the Mon Wharf, is a small taste of the Pittsburgh of the nineteenth century, before behemoths with steel skeletons rose to dizzying heights. But even here we see the seeds that would sprout into skyscrapers. The brown cube-shaped building with the fire escapes at the right end of the row is the Conestoga Building, the first building in Pittsburgh built on a steel cage, and one of the first few in the world. This kind of construction indefinitely extended the height a building could support, while simultaneously the elevator removed the human limit of about six flights of stairs.
