Which architectural landmark sparked the term 'The Bilbao Effect' - where a striking building by a star architect transformed a city's economy and global brand?

Iconic architecture can transform cities and create immense brand value for both the location and the architect. This phenomenon has been studied extensively in urban planning and architectural economics. The most famous example created a template that cities worldwide have tried to replicate - with varying degrees of success. Test your knowledge of how signature architecture can create economic and brand value for urban centers.

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Guggenheim Museum Bilbao by Frank Gehry
CCTV Headquarters by Rem Koolhaas
Walt Disney Concert Hall by Frank Gehry
The Shard by Renzo Piano