I think I'd go back to the first century B.C. to see what Roman life was REALLY like under Julius Caesar. ROME was a fascinating but somewhat frustrating series for me (after the highs of I, CLAUDIUS), and that entire period of history is just SO intriguing. I'd love to see the life of a royal, a senator, a centurion, and a slave. So many distinct classes of people in that culture, and I think it'd be fascinating to observe them all.