I recently learned that even tho we don't know know what happened to them, the best guess is that the colony went through a famine, and they were friendly with the nearby Croatoan Indian tribe, so they assimilated with them. It blew my mind because it's so obvious once you hear it.Colonial times. I still love the mystery of the Roanoke Colony just because it hasn't been solved and wont ever be.
For me, my thing is Cold War culture. Soviet and American propaganda, the atomic bomb, all that type of thing. Once you start to learn about it you realize how much of that stuff is still affecting how we think about the world.