Historypin is another site for the curious, history buffs and those who like to look back and see how it has changed over the years.
It uses Google maps to geotag old photographs sent by its users. They already have a large number of photographs that exceed 38000.
One of the features that I liked is that when we visualize an old photograph is charged the same place in Street View so we can compare the differences that emerged over time.
To find the pictures we can use the search or move around the map. We also have a timeline to filter the year in which the photograph was taken, ranging from 1840 to today.
Link | Historypin