Washington, DC is filled with the remnants of remnants of if emergency call boxes from a time before modern communications and the 911 system. You can see these metal skeletons and intersections all around the city.
Within the past several years, the DC Commission on the Arts and Humanities has funded a program that transforms these metal structures into frames for public art.
You can see a couple examples from below.
While this project includes several DC neighborhoods, one neighborhood has built a snazzy website here. I can’t find a map which includes all of the city’s refurbished call boxes, but keep an eye out for them when you’re out and about. Also, this lack of centralized mapping of these boxes leaves open an opportunity for an unofficial refurbishment of an abandoned call box…maybe with a sea blob inside.
