Here is my work on Advanced Heroquest, but all of this material can be used with any game you want. You'll find in the two first booklet (A3) plenty of corridors and rooms to build vast dungeons, catacombs and so on.
Finaly, two more booklets with doors. The first one is full of metal, wood and stone doors, portcullis, secret doors and cell grates. Each of them have a destroyed version. The second booklet is full of magical and runic doors, with their special keys and stone runes.