Holyrood (means "Holy Cross") Abbey in Scotland. Reportedly, Robert the Bruce held parliament here. Multiple invading armies damaged the Abbey, which was finally plundered during the Scottish Reformation in 1559. I know it was important to make the point of rejecting wrongful worship, but, couldn't the just put a padlock on the door?
Whitby Abbey. Ruins. Benedictine abbey in North Yorkshire. Originally founded by king Oswiu in 657 AD. Double monastery of nuns and monks. It was the home of the AS poet Caedmon and, at the Synod of Whitby, king Oswiu established that the Roman Church traditions were to be followed in detriment of the Celtic ones. (the calculation of Easter and the tonsure, among others) by Hercio Dias
Netley Abbey is a ruined late medieval monastery in the village of Netley near Southampton in Hampshire, England. The abbey was founded in 1239 as a house for Roman Catholic monks of the Cistercian order. Netley's 300-year history was quiet and its monks were best known to their neighbours for the generous hospitality. In 1536, Netley Abbey was closed by Henry VIII, the building was converted into a country house until the beginning of the 18th century, after which it was abandoned.