Castles could be up to thousands of feet long and wide.
castle
castle
In a large castle
A castle would often have a large, heavily fortified gate. A smaller gate, sometimes with a grille, let into this large gate, was called a wicket.
Yes, the word 'castle' is a noun; a word for large building with high, thick walls and towers that was built in the past to protect against attack; a very large, expensive house; a piece in the game of Chess; a word for a thing."I am going to the castle." (a place)"The castle does not have many windows." (a thing)
Castle
Castle
In Act 1 they are living in Inverness, possibly in a castle or possibly in a large house. By Act 5 they are living at Dunsinane, which is a castle.
It isn't a castle at all, it is a Palace, a very large house, ornately decorated and very imposing.
Penrhyn Castle is a fortified house, whereas all the others are large defensive forts built as part of Edward I's "Iron Ring" of castles. These were constructed to keep Wales in English hands.
"Castle Bam" a large house in Wawaset, PA.
Castle Rock.