(Salem, OR) -- The Oregon Department of Public Safety Standards and Training is inviting you to visit their memorial to 9/11 in Salem. It's located at the Oregon Public Safety Academy. It includes a section from the base of One World Trade Center, which was the North Tower, along with other pieces and a limestone fascia from the outer wall of the Pentagon near where the aircraft impacted the building. Nearly three-thousand people were killed in the attacks, including more than 400 firefighters, law enforcement officers and rescue workers. Hundreds of first responders have died due to illnesses from working at Ground Zero. The memorial will be open from 8 a.m. to 1 p.m. on Monday, September 11th.