I did a little research on just who came up with this saying. And of course I have transposed it, but It seems that it is a corruption of a phrase substituting "photographs" for "memories", and it is very widely used. Personally I like the idea, and I hope the ghost-like people in the image help to convey the idea. I don't often take my tripod into London, but this photograph tells me that it might be worth doing more often!
Sometimes a photograph just touches a nerve with an audience. Take this photograph, I don't quite know why, but it is the most viewed photograph I have taken. I published a while back on Flickr https://flic.kr/p/AKjULi and all of a sudden it had gone from zero to over 4,500 views in a flash. That is three times more than the next most viewed of my photographs, and that was after a steady viewing history over a period of years.
Now I don't particularly chase views on my photographs. I rarely put them in galleries. As one photographer friend said, I publish them because I enjoy doing so. But I cannot pretend that it is not gratifying when they suddenly, literally over 24 hours, amass a flurry of views!
Of course, we all hope that someone is going to see "that" photograph that makes your fortune. Until recently I had not taken Flickr all that seriously and I used it to experiment with all sorts of styles, photographs and different examples. However, I have recently culled enormous numbers of photographs, taken since I acquired a Canon 7D in 2010, and I have reduced it to a manageable number that people can look at and come to a view as to my merits as a photographer. Why don't you have a look at what I have here on this website, and let me know which is your favourite photograph?
Thanks for looking! Feedback and comments always welcome...