The Atlanta Fed shreds $6 million in cash a day - and it's used to grow tomatoes

Have you ever wondered what happened to currency that gets damaged?

If you have a paper shredder in your home, you already have a pretty good idea. But that's just the start. 

Great Big Story created a video to follow old bills through the process of their transformation..into plant food. It starts at the New Orleans branch of the Atlanta Federal Reserve Bank. Millions of dollars a day pass through the facility and are shredded before being composted.

Scroll on to see how the process works.