If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
The names of the continents all end with the same letter with which they start, excluding the North and South infront of AmericA.
86
Forest fires move faster uphill than downhill.
52
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40