It’s not every day that you stumble across something which blows you away, especially when you don’t quite understand why. It happened to me on Sunday, and I’m still more than a little fascinated.

Described by MSNBC as “a site that will make you call your Mom”, Dear Photograph is a beautifully simple idea. Find an old picture, go back to where it was taken, hold it up, line it up, and re-take it. For loved ones long gone, it almost brings them back. To re-live good times (or bad), it almost brings them back. I can imagine that for many people doing this, it’s quite an emotional exercise. There’s something magical and challenging about re-living – and re-imagining – the past.

The site has only been going a short while, so it’s unclear if it’s going to “go viral” or not. Either way, it reminds me a little of PostSecret, which did turn out to be a huge success.

If you decide to give it a go, you can submit photographs to dearphotograph@gmail.com. They’re also @dearphotograph on Twitter.