For some pedestrians, they're essential to getting around.

DESIGN
A new book highlights houses that integrate seamlessly into their surroundings—whether they're buried under hills, covered in mirrors, or perched over the sea.
The Snow Wolf is designed to reduce your risk of injury while clearing your driveway.
A new book collects the best information design from the magazine's 128 years in print.
The project called for 25,000 bricks—and took eight years to complete.
The denim is three times heavier than in regular jeans.
The Pentagon, home to the U.S. Department of Defense, is a remarkable building—and has been since ground was broken on its Arlington, Virginia site 75 years ago.
It's actually pretty simple.
Fears of premature burial were rampant in the 19th century. A coffin designed by a count tried to come to the rescue.
These bossy cans tell you the exact moment you should crack them open.
A retired Civil War general's assertions about the color blue led to what was known as the "Blue-glass craze."
With a clever disguise, Dutch bicycle manufacturer VanMoof has reduced wear and tear on U.S. orders by 70 to 80 percent.
San Diego residents are living large, while people are more than willing to trade space for downtown locations in Washington D.C. and New York.