CultureSustainable TourismTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoCulture11/21/2015November 21, 2015More and more travelers are heading for cities that promote environmentally friendly transport, renewable energy, and restaurants that serve food from sustainable sources. We take you to Hamburg, Neumarkt, and Freiburg.https://p.dw.com/p/1H9ssAdvertisement