A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
Forest fires move faster uphill than downhill.
52
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
The water between India and Sri Lanka is only 3-30 feet deep and was purportedly passable on foot until 1480 AD when a cyclone moved some sand around.
1
The Sahara desert expands at about 1km per month.
90
The 'King Ranch' in Texas is bigger than the state of Rhode Island.
49
In one day, a full grown redwood tree expels more than 2 tons of water through its leaves.
56
Every year, Alaska has about 5,000 earthquakes.
31