Winchester's cavernous Great Hall is the only part of 11th-century Winchester Castle that Oliver Cromwell spared from destruction. Crowning the wall like a giant-sized dartboard of green and cream spokes is what centuries of mythology have dubbed King Arthur's Round Table. It's actually a 700-year-old copy, but is fascinating nonetheless. It's thought to have been constructed in the late 13th century and then painted in the reign of Henry VIII (King Arthur's image is unsurprisingly reminiscent of Henry's youthful face).
This hall was also the stage for several gripping English courtroom dramas, including the trial of adventurer Sir Walter Raleigh in 1603, who was sentenced to death but received a reprieve at the last minute.