Steel City is a nickname often used to refer to cities known for their steel production, most notably Pittsburgh, Pennsylvania. Historically, Pittsburgh was a major center for the steel industry, especially during the late 19th and early 20th centuries. The city's economy thrived on steel manufacturing, which played a crucial role in the industrial revolution in the United States. Today, while the steel industry has declined, Pittsburgh has transformed into a hub for technology, healthcare, and education. The city is home to several universities, including Carnegie Mellon University and University of Pittsburgh, and has a vibrant cultural scene, making it a diverse and dynamic place to live and work.