As another Halloween season approaches, countless kids and those young at heart are busy working on their costumes. Goblins, ghouls, and a great many superheroes will take to neighborhood streets eager for sugary treats. Halloween is a chance to pull out all the stops and decorate your home as an elaborately frightful abode. This got us thinking about those naturally scary places. Destinations where the thrill of adrenaline-packed excitement or maybe the appearance of seemingly other-worldly environments invoke a spine-tingling sensation. We searched around the world and come up with a list of places that in one way or another qualify as downright scary destinations. From death-defying hiking trails to creepy castles, these are the best scary travel adventures to have this Halloween.