Which architectural firm underwent a significant logo redesign in 2011, changing from a distinctive orange square with the firm's initials to a more minimalist black and white wordmark?

Test your knowledge about one of architecture's most iconic brand identities and its evolution over time. Many architectural firms have distinctive logos that represent their design philosophy and approach. This poll explores how one famous architectural practice transformed its visual identity to reflect changing times while maintaining its core values and recognition in the industry.

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Foster + Partners
Zaha Hadid Architects
Skidmore, Owings & Merrill (SOM)
Bjarke Ingels Group (BIG)