Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
8
It's still possible to see the division between East and West Germany due to different light bulbs.
5
Check your map! Virginia extends farther west than West Virginia.
67
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
One cubic mile of seawater contains about 50 pounds of gold.
79
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
The Caspian Sea is also classed as the world's largest lake.
52
The Sahara desert expands at about 1km per month.
90