Starting as a pilot project next month, Vienna’s “Culture Token” will track users’ movements—and their chosen mode of transit—across the city via an app. For each car-free kilometer the user travels, the app stores up credits. Once the user has stored up 20 kilograms of carbon savings—possible with about two weeks of car-free commuting—they get a token they can exchange for a ticket to various arts venues, including Vienna’s most respected concert hall, theater, and contemporary art venue. – CityLab