Not long before wrecking balls leveled the nearly two dozen warehouses that made up historic Jobbers Canyon, Roberta Vana recalls walking through the downtown neighborhood near her office that for a century had been crowded with workers unloading freight trains packed with equipment, food and furniture for sale across the upper Midwest. "It really was like being in a canyon," she said of the towering brick buildings, which captured the aura of Omaha's role as major transportation hub in the late 1800s.