Which innovative building material, launched in 1998, revolutionized façade design with its ability to clean itself and break down air pollutants through a photocatalytic reaction?

Frank Lloyd Wright once said, 'The architect must be a prophet... a prophet in the true sense of the term... if he can't see at least ten years ahead, don't call him an architect.' In this spirit, architectural product launches can significantly shape design trends and building practices for decades. Test your knowledge about groundbreaking product innovations that transformed architectural possibilities!

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Pilkington Activ self-cleaning glass
TiO2-coated Hydrotect tiles by TOTO
Saint-Gobain's Bioclean glass system
Neolith sintered stone surfaces