Tiles for America

Mulry Square is a triangular site at the southwest corner of Greenwich Avenue and Seventh Avenue South in Greenwich Village, Manhattan, New York City. It was once thought to be the site of a wedge-shaped diner that was the inspiration for Edward Hopper's famous painting Nighthawks. The parking lot's fencing supports Tiles for America, a September 11 memorial consisting of some 6,000 tiles created across the country.

https://en.wikipedia.org/wiki/Mulry_Square

9/11 Tiles for America Memorial