1. I didn't make a poll, so it wasn't me.

2. Very good points Bell, I did know this about the smokestack. However, in the movie, the smoke shown coming from it was just as thick, heavy and black as those coming from the other 3, suggesting it WAS used for for the same purpose as the other 3. In real life photos of it, the smoke shown coiming out of the 4th one was lighter, not as black and thick as the others, obviously, becuase it was only used as ventilation.

3. It stored deck chairs, if I recall it correctly.