The vibrant ten-block district known as the Golden Triangle, at the heart of downtown PITTSBURGH , stands at the confluence of the Monongahela, Allegheny and Ohio rivers, once bitterly fought over as the gateway to the West. The French built Fort Duquesne on the site in 1754, only for it to be destroyed four years later by the British, who replaced it with Fort Pitt . Industry began with the development of iron foundries in the early 1800s, and by the time of ... [More]