This place can be found in Windsor in the English county of Berkshire, t is the largest inhabited castle in the world and, dating back to the time of William the Conqueror, it is the oldest with continuous occupation. The castle's floor area is approximately 484,000 square feet (44.965 meters square). Together with Buckingham Palace in London and the Holyrood Palace in Edinburgh, it is one of the official primary residence of the British monarch. Queen Elizabeth II spends many weekends of the year at the castle, using it both for state and for private use. It is a nice place to visit and see the sights.