Eilean Donan, Scotland
Over the years, the castle has had to be restored. It was once used as a defensive measure in the early 13th century, protecting against the Vikings who raided the land.
And, it was the site of a battle between the Spanish and the English that lasted three days.
Now, the castle has become a stunning point of attraction for travelers, not only because of the incredible scenery. The castle is at a point where three great sea lochs meet, making it a mystical scene for many.