This is the top of the street I grew up on. As captured last summer by Google Street View. So it's already redolent with nostalgia for the golden age when Woolworth's was still going.
As soon as Street View arrived I found myself virtually driving to the top of our street to the place where the trig point used to be, put up when the estate was being built and taken down probably 30 years ago. It was a big concrete thing, and it was where we used to play when we were kids. (Position of the trig point shown by orange lines.)
I'm certainly not the first to realise or write about this effect but doing this really struck home how powerful things like Street View and geo-tagged Flickr will be as remembering tools. Not just remembering things you've got pictures of, but the things implied and stirred by the pictures. So they're not just tools for locating yourself or your objects, but for locating your memories and exchanging them with others. Because I bet someone's got a picture of this trig point somewhere and sooner or later they'll geotag it, upload it, layer it on some other service and I'll see it somehow and it'll make me cry. Because I'm getting to that sentimental age.