Is this the biggest traffic jam you've ever seen?

If you don't like sitting in big traffic jams, then give a thought to the drivers and passengers in this huge jam.

It happened just outside of Beijing, the capital city of China, as people were returning home from a national holiday.

There are more than 30 lanes of vehicles, which then merge into fewer lanes - it can't have been fun being stuck in any one of them!

Watch the clip to see the gigantic traffic jam...