A Native American tribe in South Dakota collects bottle caps left by campers, using them as currency. Several banks in the area now recognize the caps as legal tender.
225
The United States has paved enough roads to circle the Earth over 150 times.
72
Approximately 4 to 5% of the U.S. population has one or more clinically significant phobias in a given year. Specific phobias occur in people of all ages. The average age of onset for social phobia is between 15 and 20 years of age, although it can often begin in childhood.
30
Outside of the bedroom, the most common place for adults in the U.S. to have sex is the car.
391
50% of pizzas in America are pepperoni.
183
The U.S. has 115,000 janitors, 83,000 bartenders, 323,000 restaurant servers, and 80,000 heavy-duty truck drivers with bachelor’s degrees.
15
In the U.S. the typical school year is 180 days long. In China, the typical school year is 251 days.
7