Kilchurn Castle is a cool old ruin sitting on a rocky peninsula at the end of Loch Awe in Scotland. Built in the 15th century by the Campbells of Glenorchy, it was once a powerful stronghold but fell into disuse and ruins by the 18th century. Lightning struck the castle in 1760, causing major damage and leading to its abandonment. Now, it's looked after by Historic Environment Scotland and open to visitors during the summer. You can reach it by boat or on foot, and it's a pretty neat spot to explore if you're into history and scenic views.