10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41
One cubic mile of seawater contains about 50 pounds of gold.
79
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
The 'King Ranch' in Texas is bigger than the state of Rhode Island.
49
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
Longest officially recognized place name is Taumatawhakatangihangakoauauotamateapokaiwhenuakitanatahu.
112
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