FACTS ABOUT DARK RIDDLES REVEALED

Riddle: I've metropolitan areas but not houses. I've mountains but no trees. I have coasts but no sand. What am I? I’m as gentle like a feather, but no you can keep me for various minutes. What am I? though the riddle causes it to be appear to be you’re holding the answer as part of your hand, it refers to another thing that can be held. Ridd