More than 200,000 people walked across it on the first day.

ENGINEERING
Patterns of light cause resin to bend itself into origami shapes.
Look to these brilliant women for what to expect from the robots of tomorrow.
Just a handful of people have ever been to the deepest part of the ocean, but what we've learned about life in the hadal zone is astonishing.
The world's largest test bed of floating solar panels is due to be operational by the end of the year.
The mysterious Antikythera mechanism—sometimes called 'the world's first computer'—has fascinated scholars for decades.
Connecting New Jersey and Manhattan, the George Washington Bridge remains one of the longest suspension bridges in the United States and is responsible for transporting millions of people into and out of New York every year.
The Hywind wind farm will be the largest of its kind.
A new spin on the “my dog ate my homework” excuse.
Take the world's longest escalator to the longest flight to the longest subway to the longest bridge.
When you want to stop Niagara Falls from flowing, install a cofferdam. The New York State Parks Commission is hoping to do just that as early as 2019.
An armband designed for gesture-based computing could also revolutionize prosthetics.
This model of the Mississippi River Basin was a feat of midcentury engineering. Now it's open to the public.
The hulking Hoover Dam has been holding back the Colorado River and generating power for nearly 80 years, but you may be surprised to learn just how eventful its construction and naming were.
How do you plug leaks in an 85-mile long tunnel buried 700 feet in the ground?