The Open House Festival has become a traditional architectural celebration, offering free access to explore the hidden gems of the city and enjoy the unique atmosphere of togetherness and excitement that comes with discovering new places. Each year, it attracts tens of thousands of visitors — not only from Prague but also from across the Czech Republic and abroad. Open House is the largest global architectural event. Through tours of buildings and spaces normally closed to the public, it provides a direct experience of architecture and allows visitors to explore it in various contexts.