What Was There

WhatWasThere ties historical photos to Google Maps, allowing you to tour familiar streets to see how they appeared in the past.
The interactive tool What Was has photos from different locations across the globe, in different time periods, with dates and a little information about each picture. The British Museum has a more comprehensive collection but this site is a good starting point for children to explore their own surroundings and learn a little about local history, such as what London looked like during the Blitz.