Worst Hurricanes In The History Of Humanity

1935 Florida Keys Labor Day Hurricane

This Category 5 storm, considered the strongest to hit the U.S. in the 20th century, brought 200-mph (320-kph) winds and soaking rain to the upper and middle Florida Keys and killed approximately 400 people. More than half of the dead were World War I veterans who had been working on building a highway from Key West to Key Largo. Damage in the United States was estimated at $6 million.