CultureEuromaxx - Highlights of the Week12/19/2016December 19, 2016In this edition: light art, muscle power, prehistoric caves , the city of Zurich prepares to celebrate Christmas and Gran Canaria.https://p.dw.com/p/2UWMPAdvertisementEuromaxx - Highlights of the WeekTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video