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High airfare and gas prices don't exactly make it easy to travel right now. And the greenhouse gasses that come out of those transportation methods aren't particularly great, either.

It's time to untangle the mystery of those bed sheet thread counts.

Did you realize how many idioms commonly used today have their origins in Renaissance literature and culture of the 16th and 17th centuries? These trendy turns of phrase are the best things since sliced bread—and nearly half a millennium older.

In the '80s, the destruction of two walls changed the course of human events. One was the Berlin Wall, which came down on November 9, 1989. The other was the wall separating Aerosmith from Run-DMC in the 1986 music video for "Walk This Way."

Is it really not the heat, but the humidity? With temperatures spiking around the world, it's a good time to answer some questions about the heat index.

The Gold Star Family license plate has its roots in a custom that began during World War I.

In the three decades since its debut book, 'Welcome to Dead House,' R.L. Stine's Goosebumps series has sold more than 400 million books worldwide.

From Led Zeppelin to Pink Floyd, here are classic rock’s 10 best lullabies.

Computer scientists are developing algorithms for AI to complete the unfinished works of Beethoven and other classical music masters.

Google Street View's archives are the closest thing we have to a time machine.

You can still find reminders of the days when horse-drawn transportation reigned.

Classic video game consoles like the Game Boy and PlayStation 2 dominate overall sales.