Culloden was where the English finally caught up with and defeated Prince Charles (Bonnie Prince Charlie) who was leading the Jacobites in the mid-1700s. I was surprised by a few things: First, the battle field was pretty small; Second, it was very wet marsh land covered with nearly impenetrable bushs; and Third, the battle lines were very close together -- around a hundred yards. I guess both sides were surprised, too, because the battle became a bloody hand-to-hand conflict punctuated by occasional cannon fire. In fact it was the superiority in the number of English cannon that the battle turned on.
The only other battle field I have ever visited was the Custer Battle Field in Montana. So I am hardly an expert. But I found it interesting to visit this site and imagine what the battle must have been like.