PITTSBURGH, United States: More than 1,800 knitters have covered the Andy Warhol Bridge in the U.S. with 3,000 feet (914 meters) of colorful yarn.
Volunteers worked all weekend to attach 580 blanket-size, hand-knitted panels to the pedestrian walkways on the bridge in Pittsburgh, the city where Warhol was born.
The project was organized by the Fiberarts Guild of Pittsburgh and other local institutions.
The guild calls it the nation's largest "yarn bomb." The term applies to artists who knit coverings for everyday objects like lampposts, street signs and trees.
The bridge will be covered in the yarn until Sept. 6.