Which famous technology company's headquarters features a massive ring-shaped building nicknamed 'The Spaceship' that was one of the final projects overseen by its founder before his death?

In the world of architecture, certain buildings have become synonymous with the brands they represent, functioning as three-dimensional logos that instantly communicate corporate values and identity. These architectural brand statements go beyond mere functionality to become powerful marketing tools and cultural landmarks. Test your knowledge of these iconic structures that have redefined how companies present themselves to the world through physical space and design language.

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Apple (designed by Foster + Partners as one of Steve Jobs' final projects)
Google (designed by BIG and Thomas Heatherwick as one of Larry Page's signature initiatives)
Amazon (designed by NBBJ as Jeff Bezos' vision for a sustainable corporate campus)
Microsoft (designed by Rem Koolhaas/OMA as Bill Gates' parting architectural statement)