The largest iceberg ever recorded is Iceberg B-15, which calved from Antarctica's Ross Ice Shelf in March 2000. This iceberg measured approximately 4,250 square miles—nearly the size of Connecticut.

Explore the World's Largest Underwater Cave January 17, 2018 - The world's longest underwater cave has been discovered near the city of Tulum, on Mexico's Yucatán Peninsula. The new discovery ...

The world's biggest iceberg — which is roughly three times the size of New York City — is "on the move" after being stuck to the ocean floor for 37 years, scientists confirmed Friday.

In Michigan's upper peninsula lies one of the world's oldest and largest lava flows. It's housed in a historic park, and it should be on your list to visit.

The Empty Quarter, or Rub' al-Khali in Arabic, is one of the world's largest deserts. Spanning nearly 650,000 square kilometers -- mainly in Saudi Arabia -- it dominates the Arabian Peninsula ...

In the coldest and most remote parts of the world, far from people and cities, glaciers quietly shape our planet. These huge blocks of ice may not make news every day, but they play a big role in ...

After months of drifting, the world’s largest iceberg has come to a halt near the island of South Georgia in the South Atlantic Ocean. While a “Titanic II” scenario isn’t very likely, and ...