Open House Worldwide is a global initiative that promotes architecture and design by inviting the public to explore significant buildings and spaces. This event typically occurs over a weekend, allowing people to visit various sites for free, including private homes, cultural institutions, and historical landmarks. The program aims to foster a greater appreciation for architecture and urban design, encouraging community engagement and education. It originated in London in 1992 and has since expanded to numerous cities worldwide, showcasing diverse architectural styles and innovations while connecting people with their built environment.