Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
8
The water of the Antarctica is so cold that nothing can rot there.
334
The average ice berg weighs 20,000,000 tons!
54
The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
63
If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
181
The city of Houston, Texas is built on a swamp and is slowly sinking!
89
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