Inside Windsor Castle - from 18,000 bottle wine cellar to 1,000 rooms and Old Masters

ok.co.uk:

Her Majesty’s Berkshire residence Windsor is the oldest and largest castle in the world that’s still lived in. It was founded by William the Conqueror in the 11th Century, and the outside walls still lie on the original foundations.

Since then, it’s been home to 39 monarchs and the Queen spends her weekends in among the castle’s 1,000 rooms, also taking up official residence for a month in spring during the grandly titled Easter Court.The castle has upper, middle and lower wards, but the central focus is The Round Tower.

It isn’t strictly round, as it has a straight side, but it does offer spectacular views thanks to George IV’s insistence to have it raised by 30ft to improve the skyline.

St George’s Hall is the biggest room at 55.5m long and can seat up to 162 for a banquet in honour of visitors, which have included US presidents Joe Biden and Donald Trump in recent years.