Which architectural masterpiece sparked the term 'The Bilbao Effect,' referring to how iconic architecture can transform a city's brand identity and dramatically boost tourism?

The intersection of architecture and branding has created powerful economic and cultural phenomena in cities worldwide. One of the most famous examples is how a single architectural landmark completely transformed a city's global brand identity and tourism economy. This poll tests your knowledge of this significant retail innovation concept that has influenced urban development strategies across the globe.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

The Guggenheim Museum Bilbao by Frank Gehry
The Sydney Opera House by Jørn Utzon
The CCTV Headquarters by Rem Koolhaas
The Burj Khalifa by Adrian Smith