Which innovative building product, introduced in the 1980s, revolutionized contemporary architecture by allowing for fluid, curved glass facades and was first prominently featured in Frank Gehry's Guggenheim Museum Bilbao?

The architecture world is constantly evolving with innovative products that shape our built environment. Some architectural product innovations have fundamentally changed how buildings are designed, constructed, and experienced. This trivia question tests your knowledge about a revolutionary product innovation that transformed contemporary architecture and created new design possibilities.

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CATIA (Computer Aided Three-dimensional Interactive Application)
ETFE (Ethylene Tetrafluoroethylene) polymer sheets
Self-cleaning photocatalytic concrete
Structural silicone glazing systems