The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
8
Australia's Great Barrier Reef is 1,250 miles long!
45
Check your map! Virginia extends farther west than West Virginia.
67
More than 25% of the world's forests are in Siberia.
51
The 'King Ranch' in Texas is bigger than the state of Rhode Island.
49
Mexico City is built on top of an underground resevoir!
47
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59