The festival of lights is back!  Artists from around the world create these spectacular light installations for our enjoyment.  The theme this year is the coexistence of man with nature and how to take care of our planet.  There will be festival routes in Holešovice, Karlín, Old Town and various other Prague locations.  While outdoor installations are free to see, look at the website for information about tickets for indoor events.  You will also be able to download the Signal Festival App to your Smartphone for program information or get a printed map on the day of the festival in different locations.