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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.
The Moffat Tunnel
history.howstuffworks.com/american-history/moffat-tunnel.htm
The Moffat Tunnel is a six-mile tunnel that was built in the mountains of Colorado. Learn more about the Moffat Tunnel.
How Unimogs Work
auto.howstuffworks.com/unimog.htm
The first Unimog prototypes were created in 1947. Read about the history and development of the Unimog truck.
Can You Identify These National Parks From an Image?
play.howstuffworks.com/quiz/can-you-identify-these-national-parks-an-image
From Banff to the Bruce Peninsula and Waterton Lakes to Wood Buffalo, Canada is home to a varied and vast collection of National Parks. Let's see how many of these sites you've seen — or feel inspired to see after taking this quiz!
5 Skin Problems You Can Get From Your Pets
health.howstuffworks.com/skin-care/problems/medical/5-skin-problems-from-pets.htm
Skin problems you can get from your pets include bacteria, fungi and bugs. Learn about skin problems you can get from your pets.
Gray Wolves Will Get Federal Protection Again in Much of U.S.
animals.howstuffworks.com/mammals/gray-wolves-endangered-news.htm
A federal judge reversed a Trump administration ruling that removed the gray wolf from the Endangered Species Act. Here's why.
From Slash to Stevie: The Rock Star Name Quiz
entertainment.howstuffworks.com/rock-star-name-quiz.htm
How did Saul Hudson become Slash? And where did the name Meat Loaf come from? Test your knowledge of musical nicknames with this rockin' quiz!
Can You Pass This Difficult North American Geography Quiz?
play.howstuffworks.com/quiz/can-you-pass-this-difficult-north-american-geography-quiz
North America is a vast land filled with many incredible places and things. From the tallest mountains to the coolest cities, there's so much to know. Take the quiz to prove that you know your stuff!
Can You Ace This High School Geography Quiz?
play.howstuffworks.com/quiz/only-someone-an-iq-130-can-ace-this-high-school-geography-quiz-can-you
You might look back on your high school geography course with about as much fondness as you had for algebra. Still, geography can be fun. If you think you are a geography whiz, prove it by acing this quiz.
10 Longest Rivers in the U.S.: From the Missouri to the Brazos
science.howstuffworks.com/environmental/earth/geophysics/longest-river-in-the-us.htm
We bet you're looking up the longest river in the U.S. to settle a bet: Is it the Missouri River or the Mississippi River? It depends how you measure.