The single most otherworldly place I have visited on earth. This Patagonian wonder offers you the once-in-a-lifetime opportunity to trek across a glacier. There are multiple options for trekking but I recommend Big Ice, which is the longest. After hiking through forests and across the ice, you can drink the purest water of your life from the glacier itself! 

Not to mention the post-adventure treat of whiskey with glacier ice. A must do in Argentina!