Social movement We Are What We Do has joined forces with Google to create Historypin - a digital time machine that allows people to view and share history in a totally new way.

Using Google Maps and Street View technology, Historypin aims to become the largest user-generated archive of the world's historical images and stories.

Historypin invites the public to dig out, upload and pin their own old photos, as well as the stories behind them, onto the Historypin map. Uniquely, Historypin allows users to layer their old images onto modern Street View scenes, revealing a series of windows into the past.

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