The Woeful Time

The night has been unruly: where we lay,
Our chimneys were blown down; and, as they say,
Lamentings heard i' the air; strange screams of death,
And prophesying with accents terrible
Of dire combustion and confused events
New hatch'd to the woeful time: the obscure bird
Clamour'd the livelong night: some say, the earth
Was feverous and did shake. *

Scotland's Glamis Castle, the scene of William Shakespeare's fictional MacBeth, and the actual site of the murder of King Malcolm II in 1034. The bloodstain left on the floor has never been removed. Despite all attempts at cleaning, it still remains, albeit boarded over to hide the evidence.

*MacBeth by William Shakespeare