User blog comment:TheDarkKnightHasRisen/AC IV ideas/@comment-5579230-20121012062152/@comment-4975789-20121012160551

Exactly! Early-mid 19th Century England (plus maybe a bit of Europe as well) would be an excellent setting due to the Industrial Revolution and, like RusselSparrow says, many secret societies and great architecture (am I the only one who'd want to climb tower bridge?).