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| The god of fire and the city of Atlantis. |
| The dollar is only worth 12 cents of what it was worth in 1950. |
| The most popular pet in the U.S. after dogs and cats. |
| The biggest skull of any other dinosaur. |
| The Silver River. |
| In space no one can hear you scream. |
| The second most popular drink on Earth after tea. |
| The surprising ways humans have permanently changed the planet. |
| The 'impossible' problem of the ancient Greeks. |
| The most complicated and dangerous piece of military equipment in the modern world. |
| Fear of Flying |
| Can stress really turn your hair gray? |
| The Declaration of Independence wasn't signed on July 4. |
| A ubiquitous component of historical U.S. significance... beer! |
| These simple foods will help you live longer according to a new study. |
| The murderous 'Pepper X' |
| The top 10 best summer songs of all time. |
| What is the only vitamin that is a hormone? |
| Who's that whisperin' in the trees? |
| The Cold War |
| The largest amphibious invasion in military history. |
| Why did Noon originally mean 3pm? |
| The Great American Pastime |
| You'll be surprised at how slow light can travel. |
| To be perfectly honest; it does kind of look like one. |
| TV |
| The King of Tin Pan Alley |
| Marriage, family and divorce. |
| A million to one. |
| The Most Dangerous Animals in the World |
| Whirling Dervishes and Nutcrackers. |
| No eggs or bunny rabbits needed. |
| This little menace causes between 750,000 and one million human deaths per year. |
| Hump day. |
| What do fajitas and General Tso's chicken have in common? |
| The birthplace of democracy, tragedy and comedy. |
| One of the oldest civilizations on Earth. |
| The mysterious 'reading stone' |
| The Return of the Sun Serpent. |
| No longer just cut-throats and fugitives from justice. |
| You're about to help save 1.3 billion kilowatt-hours. |
| Ursus maritimus |
| The most mysterious thing in the universe. |
| The world's toughest footrace. |
| Let's hear it for more 3-day weekends. |
| The Dancing Plagues. |
| Greeting cards, flowers and condoms. |
| Is Fort Knox really only filled with gold-painted tungsten? |
| The only U.S. president to ever be inside the vault at Fort Knox. |
| The original mad scientist. |
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