Years ago, Pittsburgh was “steel city” and known for its smoky skylines from the residue of the furnaces that turned iron ore into the steel that built America’s railroads and cities.

Over the years the city has transformed itself into a gleaming downtown anchored by banking, technology and world-class universities. The smoky skies have been replaced with clear views of the Allegheny and Monongahela Rivers uniting to form the Ohio River, one of the country’s most important waterways.