The U.S. Air Quality Index (AQI) has become more common metric in recent years, as yearly wildfires ravage forests across America. But how high does the AQI go?
The security level of the prison to which a prisoner is sent depend on factors like the severity of the crime and the likelihood of the prisoner escaping.
Nuns live according to three tenets and incorporate prayer, cooking, working, and more at specific times. So why do they wear black? Let's take a look.
"Puff, the Magic Dragon," by Peter, Paul, and Mary is a '60s classic. But what's it actually about? Is it about smoking dope? Or is it a family-friendly tale?
Napoléon Bonaparte is one of the most notable historical figures in the history of Western civilization. So what happened to his only legitimate child?
The rules of royalty can be confusing, especially for those no longer living under monarchy. Here's what will happen if King Charles dies before Camilla.
You probably know which American icons are featured on $1, $5, and $10 bills. But can you name the statesmen who graced $500, $1,000, and $10,000 bills?
Getting a star on the Hollywood Walk of Fame is one of the highest honors for those in the entertainment industry. Here are the rules for posthumous awards.
There are many large urban population centers around the world that are literally sinking - and if drastic measures are not taken some of them could disappear.
On the surface, it sounds like a dumb question: Why don't birds have teeth? Well, because they have beaks, silly. It's like asking why dogs don't have wings.