The Bastion of Capo Marchiafava in Cefalù is an ancient defensive bulwark with a cool polygonal shape jutting out towards the sea. Built in 1642, it's like the town's badass protector up north. You can chill at its little viewpoint and soak in some killer views – like spotting the "drunken rock" or catching a glimpse of the Aeolian Islands on a clear day. It's like a historical lookout point with serious coastal vibes.