Due to gravitational effects, you weigh slightly less when the moon is directly overhead.
55
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
The Amazon rainforest produces more than 20% the world's oxygen supply.
182
Longest officially recognized place name is Taumatawhakatangihangakoauauotamateapokaiwhenuakitanatahu.
112
Even Antarctica has an area code. It's 672.
58
A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
Connecticut and Rhode Island never ratified the 18th Amendment (Prohibition).
25