I don't see why not! As I don't reside in the US, I wouldn't know what your regional small building laws would involve. This would apply, if you were to erect a small greenhouse, whether you would have to apply for a permit for this.
You could first find out, if you needed a permit for this, as it would be a shame if you spent the money, and couldn't have it without a permit. Once you got that out of the way, you could perhaps visit some local nurseries for advice where you could purchase the materials for the greenhouse. They may even stock small easy to assemble ones.
Try this link, for more info on prices etc. greenhousekit.com/ This is a great idea, as it is wonderful to grow your own vegetables, and perhaps some flowers. The whole family could be involved in the project, and as well as being fun, it can save a lot of money in the long run!
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.