A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
Israel's Dead Sea is 1,312 feet below sea level.
48
The state of Florida is bigger than England!
74
The 'King Ranch' in Texas is bigger than the state of Rhode Island.
49
Check your map! Virginia extends farther west than West Virginia.
67
One cubic mile of seawater contains about 50 pounds of gold.
79
Forest fires move faster uphill than downhill.
52