A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
8
The Atlantic Ocean is saltier than the Pacific Ocean.
54
The city of Houston, Texas is built on a swamp and is slowly sinking!
89
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
Israel's Dead Sea is 1,312 feet below sea level.
48
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175