This 38 page resource contains photos of people of all ages from around the world. This is a useful resource to use as discussion or creative writing prompts. For example you could ask your students to describe the people's appearances, talk about what they are doing in the photos and discuss what their life is like. You could also encourage your students to make up stories about the people in the images.
This is an interesting resource for students of all ages.
You could use this PDF file as a presentation in class or print out individual images for a display or activity.