It depends on how far along you are. If you are in your 3rd trimester, you should not ride roller coasters at all. 1st and 2nd isn't recommended by your doctor, but you can use your own judgment.
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.