Smart City Expo World Congress 2026 will be held from 3rd - 5th November 2026 at Fira de Barcelona - Gran Via Barcelona, Spain. This is the largest trade expo and exhibition about the link between urban reality and technological revolution. It is the leading event on smart cities, bringing together leaders from government, the private sector, and other stakeholders to showcase solutions that help cities thrive and create greener, safer, and more efficient urban spaces.