Well right now I'm very fascinated with 1920s Berlin. I mean probably the more interesting thing would be to go to the beginning of civilization or precivilization - like polytheistic times. It would be interesting to see what came before modern religion and culture - what circumstances created the environment or the need for it.
I have met with some of them - very honest fellows who with all their stupidity had a kind of intelligence and an upright good sense which cannot be the characteristics of fools.