The Sahara desert expands at about 1km per month.
90
A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
The Dallas/Ft. Worth airport is larger than New York City's Manhattan Island.
62
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
Australia's Great Barrier Reef is 1,250 miles long!
45
Israel's Dead Sea is 1,312 feet below sea level.
48
The city of Houston, Texas is built on a swamp and is slowly sinking!
89
It's still possible to see the division between East and West Germany due to different light bulbs.
5