The Pantheon is the largest building from ancient Rome that survives intact.
In 1939, the Packard Motor Car Company in Detroit manufactured the first air-conditioned car.
The service sector accounts for almost 70% of the Italian economy.
46 out of Montana's 56 counties are considered "frontier counties" with an average population of 6 or fewer people per square mile. No state has as many different species of mammals as Montana.
One ragweed plant can release as many as one billion grains of pollen!
A blue whale's heart is the size of a Volkswagen Beetle!
48% of astronauts experience motion sickness.
A 1993 Florida law levies fines against anyone caught intentionally littering with plastic fishing gear or lines.
Australia is the only country that is also a continent.
Rickroll is the first known worm of Apple iPhone. "Ikex" is the name of the hacker who created the worm.