What was the main change brought by the steel industry to the American architecture?

The steel industry revolutionized American architecture by enabling the construction of taller and more durable buildings, leading to the rise of skyscrapers. Steel's strength and flexibility allowed architects to design structures with larger spans and open floor plans, facilitating innovative designs and urban development. This shift not only transformed city skylines but also influenced architectural styles, moving from traditional masonry to modernist aesthetics. Overall, the steel industry played a crucial role in shaping the modern urban landscape.