In August of 2000, One-thousand journals were sent out into the world. Whoever came across would fill out a page and then leave in a public location such as a park, a shop for the next person to come across it. In this journal you can put whatever you want a photohgraph, an actual journal, or a secret.
This project all started from a man who was fascinated by what people drew on bathroom stalls and in public spaces. Like it says on the site, "the goal is to provide a method for interaction and shared creativity amoung friends and strangers." Though there are 1000 journals out there somewhere, only one has returned to this date.
To check out more journals: 1000 Journals