Pittsburgh Fun Facts: 1) Most know Pittsburgh as the “Steel City” for its more than 300 steel-related businesses in the area 2) Pittsburgh is also known as the “City of Bridges” for its whopping 446 bridges! 3) Pittsburgh is home to National Rent A Fence … the largest supplier of temporary fence, pedestrian barricades, and fence accessories in the United States. So, the next time you have a project in Pittsburgh, Cranberry Township, Bentleyville or elsewhere, call National Rent A Fence or click on the link to the right for a free quote. National Rent A Fence. Rentals Made Easy.®