Known as Prototaxites, these giant fossilized structures have long proven impossible to properly categorize.
This ridiculous bike, which towers above the ground, was put together by two friends in France.
A new study has revealed the amazing way in which fire ants cling together to form living towers.
Back when the tallest trees were only a few feet high, huge towers of fungus grew in excess of 8 meters.
The discovery marks the first time this phenomenon has been observed anywhere other than on the Earth.
The huge mile-long structure was found alongside eight buried towers at the ancient site in Cambodia.
Privacy concerns were raised this week after it was revealed that the towers had no known operators.