Forest fires move faster uphill than downhill.
52
Mexico City is built on top of an underground resevoir!
47
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 between India and Sri Lanka is only 3-30 feet deep and was purportedly passable on foot until 1480 AD when a cyclone moved some sand around.
1
Every person in the world can fit in Texas and be given over 1000 sq ft in which to live.
14
There's a lake under Antarctica that is 25 million years old called Lake Vostok.
109