Type 'Station nightclub fire' into Youtube, that one is bad. EDIT - It's the same one Janzsoon is talking about sorry.
Think at one point you see the doorway blocked and it's just bodies upon bodies that tried to get out. Grim as ****.
It's shocking how quickly it spreads though.
Bradford City Football Club Stadion Feuer! 11.Mai 1985 - YouTube
This is bad too. Stand burns down live during a televised football match. That video is still used today in fire safety to show how quickly it spreads. Both tragic and fascinating.