Looking for a cool tunnel with no light? Flagstaff has one that was formed by lava.

Add Yahoo as a preferred source to see more of our stories on Google. The Lava River Cave exhaled chilled air. I put on my sweatshirt, despite the hot July day. Though I'd been warned about the sudden ...

From zip-lining over the forest to hiking scenic trails and exploring deep caves, there are plenty of exciting ways to discover this scenic corner of Ohio. Ohio's Hocking Hills is teeming with ...