Thomas Leveritt asked random people on the street to pose in front of his ultraviolet camera to show them how sun really affects their skin. It's amazing how much we change.
When we are kids our skin looks spotless, but as we grow older the exposure to sunlight ages it and invisible freckles start appearing all over it. They are so faint that only this type of camera can expose them.
A good reminder to use sun protection cream every time you go out.