A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
18
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
It's still possible to see the division between East and West Germany due to different light bulbs.
5
A volcano has enough power to shoot ash as high as 50 km into the atmosphere.
59
The Sahara desert expands at about 1km per month.
90
10 of the tributaries flowing into the Amazon river are as big as the Mississippi river.
41