The city of Houston, Texas is built on a swamp and is slowly sinking!
89
Europe is the only continent without a desert.
62
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
Every year, Alaska has about 5,000 earthquakes.
31
Longest officially recognized place name is Taumatawhakatangihangakoauauotamateapokaiwhenuakitanatahu.
112
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
The state with the longest coastline in the Continental U.S. is Michigan.
31