Which architectural firm pioneered the first major VR-based advertising campaign that allowed potential clients to 'walk through' completed projects before hiring them?

In the competitive world of architecture, firms are constantly seeking innovative ways to showcase their designs and capabilities. Digital transformation has dramatically changed how architectural services are marketed and how firms engage with potential clients. This trivia question focuses on a groundbreaking advertising campaign that changed how architecture firms present their work to the public. Test your knowledge of the intersection between architectural marketing and technological innovation!

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Foster + Partners with their 'Experience Design' campaign in 2016
Zaha Hadid Architects with their 'Virtual Spatial' initiative in 2017
BIG (Bjarke Ingels Group) with their 'Immersive Architecture' platform in 2015
Gensler with their 'Reality Forward' marketing program in 2018