Centuries-old Warwick Castle has revealed some new secrets. Time Team presenter Tony Robinson was among the first to see four new rooms opened to visitors as part of Warwick Castle Unlocked. (video)
One of the rooms, believed to be used for bear-baiting, is believed to have been designed by King Richard III. Another, the Barbican Battlements, was used to dump tar and waste on castle invaders.
Warwick Castle was originally built by William the Conqueror in 1068.