Which architectural firm's marketing campaign first used the slogan 'Less is More' to promote their minimalist design philosophy, eventually becoming one of architecture's most famous mantras?

Great architecture isn't just about design—it's about how it's presented to the world. Some architectural firms have created groundbreaking marketing campaigns that transformed how we perceive buildings and spaces. This trivia question tests your knowledge of a famous campaign that changed architectural marketing forever. Can you identify the correct campaign that revolutionized how iconic structures are promoted?

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Mies van der Rohe's campaign for the Seagram Building (1958)
Frank Gehry's campaign for the Guggenheim Museum Bilbao (1997)
Foster + Partners' campaign for The Gherkin in London (2003)
Zaha Hadid Architects' campaign for the MAXXI Museum in Rome (2010)