Mexico City is built on top of an underground resevoir!
47
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
In one day, a full grown redwood tree expels more than 2 tons of water through its leaves.
56
The Caspian Sea is also classed as the world's largest lake.
52
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
Even Antarctica has an area code. It's 672.
58
The state of Florida is bigger than England!
74
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40