The Caspian Sea is also classed as the world's largest lake.
52
More than 25% of the world's forests are in Siberia.
51
Every year, Alaska has about 5,000 earthquakes.
31
The water of the Antarctica is so cold that nothing can rot there.
334
The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
There are approximately three chickens for every human on Earth.
13
The city of Houston, Texas is built on a swamp and is slowly sinking!
89