The Caspian Sea is also classed as the world's largest lake.
52
It's still possible to see the division between East and West Germany due to different light bulbs.
5
The 'King Ranch' in Texas is bigger than the state of Rhode Island.
49
The city of Houston, Texas is built on a swamp and is slowly sinking!
89
The state of Florida is bigger than England!
74
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
One cubic mile of seawater contains about 50 pounds of gold.
79