Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
8
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
Mexico City is built on top of an underground resevoir!
47
Forest fires move faster uphill than downhill.
52
The Dallas/Ft. Worth airport is larger than New York City's Manhattan Island.
62
Australia's Great Barrier Reef is 1,250 miles long!
45
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
There are more than 50,000 earthquakes throughout the world every year!
47