The state with the longest coastline in the Continental U.S. is Michigan.
31
An earthquake on Dec. 16, 1811 caused parts of the Mississippi River to flow backwards.
243
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
There are more than 50,000 earthquakes throughout the world every year!
47
Check your map! The Pacific entrance of the Panama Canal is farther East than the Atlantic entrance.
40
Venice Island was built on a foundation of tree trunks. 1200 years later, those same trunks still support almost all of central Venice.
8
Every year, Alaska has about 5,000 earthquakes.
31
The state of Florida is bigger than England!
74