Travel back in time with Google Earth
It is now possible to explore new set of historical aerial images, taken over European cities during World War II, via the historical imagery feature in Google Earth. They can now be compared directly to images from the present day.
To access all the imagery for yourself, and compare to the present day cityscape, click the clock icon in the top-level toolbar to activate a time-line in the Google Earth display. Move back in forth in time by dragging the time slider from left to right or by clicking the back/forwards arrows.
Source: Wired