Museum of London Releases Augmented Reality App for Historical Photos

"The app leads you to various locations around London using either the map or GPS. Once you’re there, click the “3D View” button, and the app will recognize the location and overlay the historical photograph over the live video feed of the real world, giving you a brief glimpse into how the past looked."

http://www.petapixel.com/2010/05/24/museum-of-london-releases-augmented-reality-app-for-historical-photos/

"Streetmuseum gives you a unique perspective of old and new London whether you're discovering the capital for the first time or revisiting favourite haunts. Hundreds of images from the Museum of London's extensive collections showcase both everyday and momentous occasions in London's history, from the Great Fire of 1666 to the swinging sixties."

The link in the original article is now broken, you need to go here: http://www.museumoflondon.org.uk/Resources/app/you-are-here-app/index.html