With creator Marta Kauffman driving the nail in the coffin regarding a possible 'Friends' reunion this week, now's the perfect time look back over the cultural phenomenon.

What's kept it going this long? Was it just because it's always on Comedy Central (and now Netflix) or was it something more? It's a combination of all these factors, and also that TV was a completely different landscape then to what it is now.

So what went on behind the scenes? Did Jennifer Aniston actually earn more money than all of them? What was up with the mirror thing on the door?

Here's 13 pieces of useless trivia on 'Friends'.