The Sahara desert expands at about 1km per month.
90
The Niagara Falls moves upstream at an average rate of about 295ft a century!
48
The 'King Ranch' in Texas is bigger than the state of Rhode Island.
49
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
The city of Houston, Texas is built on a swamp and is slowly sinking!
89
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
The state with the longest coastline in the Continental U.S. is Michigan.
31
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138