I remember seeing this in the demo pit at Google I/O and thinking it was one of the coolest things I saw there, because I love browsing historic pictures. I th

I remember seeing this in the demo pit at Google I/O and thinking it was one of the coolest things I saw there, because I love browsing historic pictures. I then promptly forgot the name of the service so thank you for posting this. Now I'm going to go waste the rest of the night going through pictures here.