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
The city of Houston, Texas is built on a swamp and is slowly sinking!
89
It's still possible to see the division between East and West Germany due to different light bulbs.
5
There are approximately three chickens for every human on Earth.
13
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
It takes a drop of ocean water more than 1,000 years to circulate around the world.
61
Every year, Alaska has about 5,000 earthquakes.
31
The state with the longest coastline in the Continental U.S. is Michigan.
31