Windsor Castle (UK, Windsor) - The current residence of the Queen.
The Windsor Castle is included in the Guinness Book of World Records as the largest castle on the planet.
And I was attracted to this castle and the fact that it is not just a museum or a landmark, but a fully functioning and to this day construction. Here, high-ranking guests are still received and sign important contracts. According to Queen Elizabeth II, this castle is her favorite residence. However, she lives there only a few months of the year.