How would you repurpose a rusty, 86-year-old bridge?

Folding bike helmet could change cycling safety

Morocco is home to Africa's first bike-share program

Autonomous cargo ships may set sail by 2020

Vancouver and Seattle want to cozy up in the name of innovation

Why Paris is transforming a riverside highway into a pedestrian promenade

7 of the world's steepest streets

No one knows how to merge, say road officials

The ambitious plan to 're-stitch' Atlanta's urban core

Watch helium-filled 'Flying Bum' take flight

8 extraordinary public elevators

Florida-to-Maine bike path picks up speed along Eastern Seaboard