The Castle of Mey, Scotland
Originally called Barrogill Castle, the Castle of Mey was built in the 16th century on the site of an earlier fortification by George Sinclair, the 4th Earl of Caithness.
It stands in the distant north of Scotland a few miles away from John O'Groats and was formerly the Highland home of Her Royal Majesty Queen Elizabeth the late Queen Mother who purchased it in 1952 then set about restoring it with much love and care.
The castle is said to be haunted by the ghost of a Green Lady who appears from time to time in a room in the old tower. The story goes that she was Elizabeth, a member of the Sinclair family who fell in love with a local farm worker who was most definitely considered by her father to be of too lowly birth for his daughter. Accordingly the girl's father confined his daughter to the tower hoping to keep her away from the lad and also hoping that she would think better of the relationship.
Apparently one day, the unfortunate girl leaned too far out of the window trying to catch a glimpse of her love as he worked in the fields and sadly she lost her balance and fell to her death from the tower. Either that or she deliberately threw herself to her death as a result of her unhappy state.