The Atlantic Ocean is saltier than the Pacific Ocean.
54
The city of Houston, Texas is built on a swamp and is slowly sinking!
89
Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
8
Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
Mexico City is built on top of an underground resevoir!
47
Europe is the only continent without a desert.
62
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63