Forest growth in the US has exceeded harvest since the 1940’s. Today, we have more trees than any time in the past 100 years.
14
Mexico City is built on top of an underground resevoir!
47
Every year, Alaska has about 5,000 earthquakes.
31
Even Antarctica has an area code. It's 672.
58
Forest fires move faster uphill than downhill.
52
It's still possible to see the division between East and West Germany due to different light bulbs.
5
Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
8
There are more than 50,000 earthquakes throughout the world every year!
47