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That balcony could be a relic from a when there was a bridge across the hall. These places tend to have been remodelled over the years to fit current fashions.

They would have had a lot of staff to run the place, but that got more expensive. I don't know how many gardeners they have now, but at least they have power tools.

Interesting. Like a bridge inside the house? That is crazy!

I would give another route between rooms. These people liked to entertain so the house could be crowded.