Past the pipes and equipment in the boiler room of the Berks County Intermediate Unit, on a shadowy wall way in the back, you'll find a time capsule made of chalk and cinder block.

Messages and drawings fill the wall.

"My contribution was this flag," said Dr. Kevin Andreyo, pointing to a large, chalk flag in the center of the wall.

Andreyo works for the BCIU and was working there on September 11, 2001.

"When the plane hit the first tower, we had turned on a small 10 inch TV," Andreyo recalled.

Andreyo and his colleagues watched the country change and, like many, needed a release for raw emotion.  They turned to a wall in the lower level of the building.

"I think it's kind of the journaling therapy where you get an opportunity to write about things that you're feeling," Andreyo said.

Their feelings became justified graffiti in the form of peace signs, the Pledge of Allegiance and promises to "never forget." 

One message even offers a brief biography of one of the many lives lost when the Towers fell.  It reads:

AL CONDE - RIP

DIED IN TOWER 1 - SEPT. 11 2001

LOVE ALWAYS,

COUSIN MARY ANN MAURO REARDON

"Wow, 10 years later, here we are, still so reflective and the spirit lives on here," said Dr. Jill Hackman, asst. executive director of the BCIU.

The wall was covered shortly after the attacks of 2001.  Construction crews built it in to an addition on the building.

"This was dry walled," Andreyo explained.  "And we were hoping in 200 years it would give people an opportunity to reflect on the events of 9/11."

But earlier this year, as a new construction project got underway, the covering came off.  While the big reveal was much earlier than expected, it just happened to fall in line with another historical moment, the death of Osama Bin Laden.

"The timing, it was fortuitous," Andreyo said. 

Just this year, a member of the construction crew added one final message:

May 1, 2011:  MISSION ACCOMPLISHED

And suddenly this flat snapshot of history came full circle.

"We just took some time to look at each individual segment," Hackman said.  "It was more emotional to realize and even again, coming down this morning, kind of takes your breath away."

The hope is to preserve the wall in some way.  Whether it will be covered again and left as a treasure to be discovered is unclear.  For now, it remains some of the only concrete that offers reflection.