The world's first commercial airline was founded in the United States in 1914.
The tallest building in the Western Hemisphere is the One World Trade Center, located in New York City.
The state of Alaska has the highest percentage of people who walk to work.
In Kentucky, it is illegal to dye a duckling blue and offer it for sale unless more than six are for sale at once.
The United States is the only country to have used nuclear weapons in warfare, during World War II in 1945.
There is a giant ball of twine in Darwin, Minnesota, that weighs over 17,000 pounds.
The world's largest McDonald's restaurant is located in Orlando, Florida, and has 19,000 square feet of space.
The first ever electric traffic light was installed in Cleveland, Ohio in 1914.
In some states, it is legal to own a flamethrower. The sale and use of flamethrowers are legal in 48 states, with only California and Maryland having banned them.