More than a dozen men have stood on the surface of the moon, but only three have been to Challenger Deep in the Marianas Trench, the deepest known spot in the ocean.
17
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
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
Connecticut and Rhode Island never ratified the 18th Amendment (Prohibition).
25
There are approximately three chickens for every human on Earth.
13
The Atlantic Ocean is saltier than the Pacific Ocean.
54