More than 25% of the world's forests are in Siberia.
51
The Atlantic Ocean is saltier than the Pacific Ocean.
54
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
The warmest temperature ever recorded on Antarctica was 3 degrees F.
175
Mexico City is built on top of an underground resevoir!
47