A Canada-based website that compares old photographs with new images has become the latest global sensation.

The novelty of Dear Photograph is that the new picture must be taken in exactly the same location as the original.

The site's founder says he was taken by surprise after his simple idea resonated with thousands who shared humorous, nostalgic and emotional memories with the world.

Al Jazeera's Kimberly Halkett reports.

Source: Al Jazeera