3D And Flyover
On iPad 3rd generation or later, you can see three-dimensional views and even fly over many of the world's major cities.
Use 3D or Flyover. Zoom in until 
or
becomes
active, then tap the button. Or, drag two fingers up. To switch
between 3D and Flyover, tap the lower-right corner and change
views.
Adjust the camera angle. Drag two fingers up or down.