Inverary Castle. I thought places like this only existed in my dreams!!!
It's a bit of a con though as the family get to stay in this house rent free and with all repairs being paid for due to letting people view their house - but they only actually have to allow you to see 10% of the place to qualify, they didn't even open up the whole of their gardens - it's a lovely place but one that isn't worth the entrance fee. I was going to offer them 50 pence cash for it - thought it was a reasonable offer!!!