A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
The city of Houston, Texas is built on a swamp and is slowly sinking!
89
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
Europe is the only continent without a desert.
62
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
Even Antarctica has an area code. It's 672.
58