I loved it when I visited Staffa, which is of a similar geological bent. Just when you think your world is too fantastic and "Oh that's just ridiculous!" about some feature... nature shows you that "Hey, just about anything is possible. If you can have this with the small subset of rolls-of-the-dice that we have here in chemistry and physics on your little world, imagine what you can have when you roll the dice as often as there are planets in the universe!"