Deep in a canyon of medical towers, another tower rises-colorfully marked up as if with a giant box of Crayolas. That's because someone had a wonderful idea. "It was spontaneous. I think one child put their name on a window. One ironworker saw that name, spray painted, 'Hi Kids,' and then that name on a beam-and it just grew from there," said Michael Walsh, a general foreman with Iron Workers Local 7.

Iron Workers under Walsh Brothers General Contractors, building out the skeleton of the fourteen story Yawkey Center for Cancer Care, brightly added the names of young cancer patients to the I-beams.

And down on a third floor bridge, more names get pasted on the glass. Telling those high-rise graffiti artists what names to add to their work of art. And every day, parents bring their kids out to the bridge to see their names scrawled against the sky.

"Every week when we come, we get something new, something to look forward to," said Tina Fuoco, mother of Nicholas, a 12-year-old Dana-Farber Cancer Institute patient.

"Even if they can't see it when it's all complete, they know that their names are in there forever," Nicholas said.

Through freezing wind, workers have paid tribute to more than 100 children with the fluorescent paint.

"It's been a tough winter. Cold. Snowy," said Walsh, a 27-year veteran. "But this job, the men have been plowing through because they know they're going to see the kids."

The beams give these young children a special way of knowing that they are cared for -- and are not alone.

It is a towering get-well card from men doing cold, dangerous work.

"This has been a great thing," Mike Walsh said. "It's great for their morale on the job. Great."

Great, says the job foreman, but bittersweet. Because seeing new names being put up is tough.

As reported by: Greg Wayland, New England Cable News (NECN).

ABC World News has also picked up this story: Ironworkers Forge Bond With Cancer Kids.