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Towering Obelisks Are Everywhere. Here's Why They're So Awe-inspiring
science.howstuffworks.com/engineering/architecture/obelisk.htm
Obelisks can be found in cities throughout the world, from Washington, D.C., to Paris, France. But what is the origin of these massive structures?
Pareidolia: Why We See Faces in Almost Everything
science.howstuffworks.com/life/inside-the-mind/human-brain/pareidolia.htm
We see faces in clouds, on buildings - heck, in grilled cheese sandwiches. But why is that? And how is this a help to our survival?
Deadly 1948 Donora Smog Launched the U.S. Clean Air Movement
A killer smog 70 years ago helped lead to the first federal air pollution laws.
The Rise and Fall of the Oregon Trail
history.howstuffworks.com/american-history/oregon-trail.htm
Hundreds of thousands of emigrants traveled the 2,170-mile Oregon Trail. HowStuffWorks looks at what they endured in their search of a better life.
Tarantula Hawks Are Neither Tarantulas nor Hawks
animals.howstuffworks.com/insects/tarantula-hawk.htm
HowStuffWorks gets to know the tarantula hawk wasp, which has a powerful sting and lays its eggs on the abdomen of the tarantula.
Meet the Real Vampires of the Animal Kingdom
animals.howstuffworks.com/mammals/blood-sucking-animals.htm
HowStuffWorks explores hematophagy - the vampires of the animal world. And yes, these fish, birds and bats do need to eat blood to sustain life.
9 Big Hairy Facts About Gorillas
animals.howstuffworks.com/mammals/gorilla.htm
HowStuffWorks looks at the elusive and powerful gorilla, of which there are two species, the Eastern gorilla and the Western gorilla.
Who Really Struck It Rich During the California Gold Rush?
history.howstuffworks.com/american-history/gold-rush.htm
When you think of the California Gold Rush, you probably think a lot of people made millions off that gold, right? Some did, but it wasn't from panning for it.
Can You Pass This World History Quiz?
play.howstuffworks.com/quiz/can-you-pass-this-world-history-quiz
It's easy to know the history of your own country, but just how much do you know about the history of the entire world around you? Find out now with this world history quiz!
How Will You Do on This Tough, Irritating Geography Quiz?
play.howstuffworks.com/quiz/the-hardest-most-irritating-geography-quiz-youll-take-today
Our world is full of fantastic and interesting mountains, lakes, cities, and other geographical landmarks. Grab your passport and see if you can master this tough and strange geography quiz!