The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
It's still possible to see the division between East and West Germany due to different light bulbs.
5
The Dallas/Ft. Worth airport is larger than New York City's Manhattan Island.
62
The city of Houston, Texas is built on a swamp and is slowly sinking!
89
The average ice berg weighs 20,000,000 tons!
54
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138