Google announced on Tuesday that it has added support for 3D buildings in 13 additional cities on Google Maps, including London, Paris, Barcelona, Stockholm, Singapore, Lisbon, Boulder, and 11 cities in South Africa. 

 To activate 3D buildings in one of the aforementioned locations, simply zoom in close to the city and the application will then show a 3D renders of the city landscape. If you already upgraded your Google Maps to the latest version a software update will not be required to view the new Google Maps in 3D