For those who wanted to see a Blimp or a Watertank in Los Angeles (area):
Hmmm... "military surplus or fully functioning Artillery/Anti Aircraft/Cannon etc at a
private residence...."
While we have military surplus, people who have such at home do not generally display them. They have them, but usually you need money to get to see their toys, such as to be used in movies. I would not be able to do this.
Business have lots. Cities have things around as well.