Xbox 360 controller or another game controller in Windows 7, Windows Vista or Windows XP. More than 60 cities worldwide could be viewed in 3D, including most of the major cities in the United States and a few cities in Canada, the United Kingdom, and France. Some additional cities have had a select few important landmarks modelled in 3D, such as the Colosseum in Rome. Terrain data is available for the entire world. It is also possible to use a 3D modelling program called 3DVIA Shape for Maps to add one's own models to the 3D map. Since 2014, new 3D imagery has been introduced to a number of new cities. Driving, walking, and transit directions Users can get directions between two or more locations. In September 2010, Bing Maps added public transit directions (bus, subway, and local rail) to its available direction options. Although at the beginning it was only available in some cities: Boston, Chicago, Los Angeles, Minneapolis, Newark Metro Area, New York Metro Area, Philadelphia, San Francisco, Seattle, Vancouver BC, and Washington DC, now you can find information from all over. A wide coverage is being attain in other countries such as Spain, Germany, Italy, Austria, Brazil, Mexico, Argentina, Colombia and many others. Map apps Bing Map Apps is a collection of 1st and 3rd party applications that add additional functionality and content to Bing Maps. Examples of map apps include a parking finder, a taxi fare calculator, an app that maps out Facebook friends, and an app which lets users explore the day's newspaper front pages from around the world. These apps are only accessible through Bing Maps Silverlight. A source code is available on Microsoft Developer Network to explain integration of Maps in Web Applications. A sample ongoing project on locating Blood Donors on Maps is available here. Traffic information and ClearFlow Bing Maps shows users current traffic information for major highways and roads. The feature uses 4 color codes (black, red, yellow, green) to indicate traffic volume, from heaviest traffic to lightest traffic. Microsoft announced in March 2008 that it will release its latest software technology called "ClearFlow". It is a Web-based service for traffic-based driving directions available on Bing.com in 72 cities across the U.S. The tool took five years for Microsoft's Artificial Intelligence team to develop. ClearFlow provides real-time traffic data to help drivers avoid traffic congestion. ClearFlow gives information for alternative