Nature’s underground wonders have captivated explorers and curious travelers across the country for centuries. From ...

When the summer sun is blazing, there’s no better way to cool off than by heading underground. Caves offer a naturally air-conditioned escape, along with a chance to explore some of the Earth’s most ...

Add Yahoo as a preferred source to see more of our stories on Google. Many travelers like to seek out and conquer high points, like Willis Tower in Chicago, the highest observation deck in America, or ...

On Sunday’s episode of The Excerpt podcast: Hidden beneath Earth’s surface are caverns and pathways that hold the secrets of our planet’s very beginnings. Even after decades of exploration, there are ...