The annual festival of lights, usually held in October, turns the historical centre of Prague into an amazing space ready for new ideas and technologies. For four days, the city turns into the stage for live dynamic performances of light and sound. The city literally shines. Hundreds of thousands of visitors can see the old city with a new modern perspective. The first edition of the Signal Festival, in 2013, gathered around 250,000 visitors. Wait for the evening hours and enjoy the light performances and magical atmosphere of the city.