Australia's Great Barrier Reef is 1,250 miles long!
45
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109
Europe is the only continent without a desert.
62
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
Every year, Alaska has about 5,000 earthquakes.
31
The city of Houston, Texas is built on a swamp and is slowly sinking!
89
More than a dozen men have stood on the surface of the moon, but only three have been to Challenger Deep in the Marianas Trench, the deepest known spot in the ocean.
17
Forest fires move faster uphill than downhill.
52