Which product design innovation first allowed architects to create truly large-scale, open floor plans in commercial buildings during the late 19th century?

Test your knowledge about how product design has influenced modern architecture! This trivia question focuses on innovative building materials that revolutionized architectural possibilities. The intersection of product design and architecture has led to some of the most iconic structures around the world, changing not only how buildings look but how they function and interact with their environments.

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Reinforced concrete
Steel-frame construction
Laminated glass
Aluminum curtain walls