Millwall are a club who perfectly epitomise what it is to play in the Championship.
They’re a team who have the ability to play attractive football, but also have the steel needed to grind out results and make life very tough for their opponents.
A large part of that is down to their home advantage.
The Den is one of the most renowned stadiums in English football and has a reputation for being a tough place for any side to visit.
But how much do you know about Millwall’s ground? Have a go of our quiz and test yourself!