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
More than a dozen men have stood on the surface of the moon, but only three have been to Challenger Deep in the Marianas Trench, the deepest known spot in the ocean.
17
If Manhattan had the same population density as Alaska, there would only be 15 people living there.
138
There are approximately three chickens for every human on Earth.
13
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
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