A rock formation in the Mississippi River normally only reachable by boat is accessible by foot for the second year in a row as water levels plummet. Tower Rock juts out of the Mississippi River ...

A natural rock formation looked like giant fingers protruding from the hillside. Aerial footage shows the Hin Sam Wan looking like clenched fingers in the mountainous region near the Mekong River ...

A NASA satellite has beamed back a picture of an interesting Martian rock formation. The picture looks like a giant bear. NASA has spotted several other amusing rock formations on Mars over the years.

But, tourists hoping to visit might be disappointed. Here's why. A severe drought caused a rock formation in the Mississippi River to be visible. It's a rare sight, but those wishing to see might ...

A severe drought caused a rock formation in the Mississippi River to be visible. It's a rare sight, but those wishing to see might be disappointed. The drought, this week, caused water levels near ...