Cool! I remember on my one (and only so far) trip to Scotland, I was in Holyrood Palace. An American (as evidenced by their accent) behind me excitedly asked the guide where the blood stains from Rizzio's murder where. After he told them where, they scurried off to see them. I quipped to the guide that he had neglected to tell them it was really from the cleaning lady who had hurt herself the previous week. I mean really, who believes blood stains wouldn't get faded after 430 years.