A office employee in the Unites States realized that his place of work is very boring. Every day, he looked a gray, dull walls and thought that there has to be something that can add a little variety to the sad space.
One day he came up with a crazy idea, which caught on with his friends. He bought 9000 colorful post-its and started sticking them to the wall. He decided to make the figures of his favorite superheroes out of them!