Open House Worldwide is a global network of nearly 60 organizations dedicated to hosting festivals and conversations about architecture, design, and cities. With a staggering 750,000 participants in 2022 alone, and over 2 million building visits facilitated by 16,000 volunteers, Open House Worldwide stands as the largest celebration of the urban landscape in the world. This nonprofit, registered as a charity in the UK, has been engaging citizens since 1992, particularly those from underrepresented backgrounds, to learn about architecture and city planning.

Open House Worldwide is committed to fostering advocacy, dialogue, empowerment, and experience by creating accessible platforms for exchange, encouraging public dialogue, raising awareness of the public's stake in city development, and facilitating opportunities for city inhabitants to experience architecture. By offering free entry to all events, they ensure the widest possible audience participation without any barriers. Open House Worldwide is truly empowering communities to advocate for a well-designed, inclusive, and sustainable urban environment